Percy Jackson

''This article is about the character. You may be looking for the the series, the video game, the film, or the film soundtrack.''

"Yeah, flattering. But actually I'm the son of Poseidon. I'm from Camp Half-Blood."

- Percy to the giant Alcyoneus, in The Son of Neptune

Perseus "Percy" Jackson was the main protagonist and the narrator of the Percy Jackson and the Olympians series as well as one of the main characters in The Heroes of Olympus series. He is a Greek demigod, a son of Poseidon, god of the seas, and Sally Jackson. He is the counselor of Poseidon's Cabin, Cabin #3 and is a former Praetor of the Twelfth Legion at Camp Jupiter. He is currently in a relationship with Annabeth Chase. He is portrayed by Logan Lerman in the film Percy Jackson and the Olympians: The Lightning Thief, and Percy Jackson: Sea of Monsters.

Early Life
Perseus "Percy" Jackson was born on August 18 1993. He was raised by his single mother, Sally Jackson whose parents tragically died in a plane crash when she was five. When Percy was a baby, his father, Poseidon, left to protect him and his mother from monsters. However, Poseidon visited him when he was in his cradle, which Percy described as a "golden glow" and his father's warm smile and a hand on his head. When he was a toddler, his mother married Gabe Ugliano, whom Percy despised and called "Smelly Gabe" because of his body odor that smelled like mouldy garlic pizza wrapped in gym shorts.

Strange things often happened around Percy, often resulting in him getting into some kind of trouble or getting kicked out of school. When just a baby, Percy was attacked by a snake, but managed to strangle it to death. When he was in third grade, a large man followed Percy around when he was at school, but by threatening to call the police, the teachers eventually got the man to leave. However, nobody believed him when he said that the man had one big eye. When he was in fourth grade, he accidentally hit the wrong lever on the catwalk when his school was visiting the Sea World Shark Pool and made his class take an unplanned swim. Then in fifth grade, he accidentally fired a war cannon which hit the school bus. Percy recounted that he was expelled from six schools over the course of six years.

Personality
"He’s actually pretty intelligent, but he acts so dumb sometimes. I wonder if he does it just to annoy me. The guy has a lot going for him. He’s courageous. He’s got a sense of humor."

- Annabeth talking about Percy

Percy is a brave, spirited natural leader, and is willing to risk his life to save friends, family, strangers, and sometimes even enemies. He has a sarcastic and smart sense of humor, a laid-back demeanor, and has earned the respect of all the Olympians, including Artemis (who strictly dislikes men), Dionysus (who hates most heroes because of what happened with Ariadne), and Hades (who generally hates people). He also earned the trust and respect of the Romans of Camp Jupiter (who don't usually trust Greeks). Percy remains true and never goes back on his word. However, he is definitely not perfect. Percy is somewhat short-tempered, and thus has trouble controlling his anger (such as when he sees bullying) and tends to do or blurt out things before thinking, no matter the consequences, causing him to get into a lot of trouble. He also feels responsible for everyone and anything which goes wrong.

Many people tell him he is brave such as friends, family, strangers, and even gods and goddesses. He also states that he has the same "brooding" look as his father, that always branded him a rebel, and that his mom also has a rebellious streak just like him. Annabeth Chase mentions that he is technically smart but seems to act dumb; and is obtuse, meaning he doesn't always see the obvious even when it is right in front of him, such as people's feelings and what they are trying to see indirectly. Despite this he is perceptive when he wants to (or needs to) be; he could tell that Gaea wanted to keep him alive and gambled his life knowing that he was too valuable to Gaea for him to die at that time. Percy can also be derisively sarcastic and moody, and he dislikes being manipulated or forced to obey. Percy also has small feelings for Annabeth Chase at the beginning of the series and these feelings became romantic over the course of the series, but he finally confirms it in the The Last Olympian. Although Percy is a leader at Camp Half-Blood, he is considered a troublemaker in school, with a track record of expulsions, like most demigods. His dyslexia makes learning and reading difficult, and his ADHD makes it hard for him to be attentive or to sit still in class. He has never been one of the "cool" kids in class because he hangs out with supposedly "un-cool" people such as Tyson or Grover Underwood. Possibly because of his bad history in school, Percy feels a strong level of affection and attachment to Camp Half-Blood.

After getting his memories taken by Hera, and living on the streets and fighting monsters, Percy has developed a"wolf stare" that says "No matter how bad you think you are, I'm worse" which enables him to scare off people like gangsters. He is not afraid of anything in the mortal world anymore, including gangs. He notes that it is probably Lupa's influence on him, as he stayed with her and her pack for weeks. Despite being very confident in his own abilities, Hazel Levesque can sense there is a quiet sadness in Percy, like he saw his destiny and knew that one day he would face a monster he couldn't beat (similar to how she feels about Jason Grace).

While in Tartarus, Percy is starting to show a darker and more dangerous side of him in his persona.

Fatal Flaw
"To save a friend, you would sacrifice the world."

- Athena

Percy's fatal flaw is excessive personal loyalty: he would risk the world and even his own life to save a loved one or even a stranger according to Athena. Athena was obviously displeased that her own daughter is an object of that loyalty. Kronos previously exploited this trait in The Lightning Thief (Sally Jackson), The Sea of Monsters (Grover), and The Titan's Curse (Annabeth Chase). Athena also says "The most dangerous flaws are good in moderation" when Percy protests that personal loyalty isn't all that bad. In The Son of Neptune, Mars states to Frank Zhang that Percy's flaw would hinder the completion of the Prophecy of Seven, which worries Frank. Hera, however, states that his fatal flaw will keep the seven together.

Appearance
"He's good-looking, but don't you dare tell him I said that."

- Annabeth Chase

Percy is described as a very handsome young man, with jet black hair and bright sea green eyes. Despite most assuming he is tall, this has never been confirmed, with only the fact that he is an inch shorter than Jason and taller than Annabeth being confirmed. He had a gray streak of hair he obtained in The Titan's Curse from holding the sky, but has since lost it, as stated in The Mark of Athena by Annabeth. It is said that Percy gets his handsome looks from his father, Poseidon, a reason why Medusa wanted to preserve a statue of him. At the beginning of the series, Percy was average in athletics but later from his training, becomes very fit, muscular, and lean. He does not seem to know it, or may simply refuse to acknowledge it, but a great number of girls find him extremely attractive. Even Hazel Levesque stated that "He had the good looks of a Roman god." He is also complimented by Calypso, who when asked whether she was in love with Percy states, "If you could see your face. Of course, you."

After he slew Polybotes in The Son of Neptune, Percy received a tattoo of a trident and SPQR on the underside of his arm to signify that he is a full member of the Roman 12th Legion Fulminata. After Annabeth and Percy's reunion in The Mark of Athena, Annabeth says that Percy grew even more handsome, muscular and taller. She says that Percy's lips are salty and he smells like the sea, with the latter later remarked by Piper. According to Piper, he looks like a skater and a troublemaker, but she can still see what women would like about him, even if he isn't her type. Piper later states that when Percy pleads, his sea-green eyes seemed to be "like a cute baby seal that needed help," and wonders how Annabeth ever won an argument with him.

Abilities and Items
General Abilities= Percy, as a demigod, has these abilities and traits:

ADHD: Percy's supernatural alertness and keen senses that keep him ready for, and alive, in battle. It also lets him analyze his opponents fighting style as well as pick up minor details about an opponent, such as where their muscles tense so he can tell which direction they'll attack from. This is one general trait of demigods.

Dyslexia: Percy's brain is "hard-wired" for reading divine Ancient Greek instead of mortal languages. During his time at Camp Jupiter he learned to understand, and possibly speak, Latin to an unknown degree. This, along with ADHD, is a trait common to most demigods.

Limited Clairvoyance: Percy is able to watch events in distant locations and times, particularly hidden things because of his father's unpredictable nature. He occasionally takes the place of a different person in his visions (such as Hercules).

Fighting Skills: Percy is a naturally talented and expert swordsman, capable of holding his own against and even defeating larger, more experienced, and more powerful opponents, including gods and Titans as well as monsters. In The Son of Neptune, even after losing the Curse of Achilles, he is still shown to be able to fend off an entire army of continually resurrecting ghosts by himself while still protecting Frank. His Greek training and unpredictable, solo fighting style make him particularly dangerous to the demigods of Camp Jupiter, who are used to fighting as a group, allowing him to easily defeat multiple opponents at once.

Above Average Strength: In The Titan's Curse, Percy was shown to be strong enough to be able to hold up the sky single-handed (but just barely). He was also shown in The Lightning Thief to be able to jump on the Minotaur's back and rip off it's horn. In The Son of Neptune, even after losing his Curse of Achilles, Percy was able to defeat Polybotes with nothing but his sword and Terminus' head.

Curse of Achilles: After bathing in the River Styx, Percy was given supernaturally superior speed and strength as well as invulnerability except for his vital spot opposite of the navel. With the Curse of Achilles, Percy's own combat skills are enhanced to the point where he can single-handedly defeat entire armies as well as gods like Hades and Titans like Hyperion (albeit he had some help in defeating Hyperion). He later loses it by touching the Tiber river as it was a Greek blessing.

Empathy Link: Percy has a psychic connection with Grover called an empathy link. In The Son of Neptune, Don the faun said that Percy had an empathy link with another faun who is Grover.

Eye of Horus Symbol: Percy has an image of the Eye of Horus drawn on his palm, which can allow him to summon Carter Kane wherever he is just by speaking his name, though Percy can use it only once. So far Percy hasn't used it yet.

"Not that powerful, eh? Could have fooled me. You're the son of the Earth-shaker, lad. You don't know your own strength."
 * -|Demigod Abilities=

- Hephaestus to Percy Jackson

As a son of Poseidon; one of the Big Three, Percy is an extremely powerful demigod. He has a degree of divine authority over his father's domains and subjects. Hazel had considered Nico di Angelo the most powerful demigod she knew, until she met Percy, and believed that Percy's power rivaled Nico's and Jason Grace's abilities. Nico later states that, even compared to the rest of the Seven Heroes of Olympus, Percy is the most powerful demigod he has ever met. Both through his father's authority and his own inherent power, Percy's abilities include:

Water-Induced Abilities: When in contact with or in the presence of water, Percy gains a disproportionate amount of superhuman clarity, strength, speed, agility, and endurance equaling a god and he has shown to be more powerful than Ares while in this state. In The Lightning Thief, Percy was able to defeat Luke in the Camp Half-Blood swordsmanship class after he'd doused himself in water. In addition, after Percy was pushed into the creek during Capture the Flag, he effortlessly defeated four children of Ares in rapid succession, including Clarisse, with ease. However, this only lasts for a limited amount of time unless he is completely submerged in water. He also heals himself from any wound and most poisons when he comes into contact with water, the amount of water and time needed for the healing being proportionate to the severity of the wound.

Hydrokinesis: With the power of the sea within him, Percy can control every form and great volumes of water, being even able to summon and heal his wounds and cure himself of most poisons with it. Percy can control water almost omnipotently. He can control it in order to make it explode, or use it to grab something. His hydrokinesis abilities include:
 * General Hydrokinesis: He can create water from petrified seashells, as well as being able to create water with his own energy and summoning the "force of the ocean" to his will, as long as he concentrates hard enough. He can also harden water into an almost solid shape.
 * Hydrogenesis: Percy can create water from his own power, though it takes much of his energy for him to do so. Percy did this while at Mount Saint Helens, creating water out of nothing to cause a volcanic eruption. He also uses this skill while creating his own personal hurricanes. While traveling on the Argo II during The Mark of Athena, he presumably used this ability while combining his powers with Jason Grace's to create powerful storms.
 * Healing Factor: Since he is the son of Poseidon he can heal most wounds and cure most poisons when in contact with water.
 * Water Propulsion: He can control the water around him to propel himself through water. Percy can shoot water, not only from being in water, but he can blast the own water he creates.
 * Underwater breathing: Percy can breathe underwater and diffuse the oxygen in the water to create oxygen bubbles that allow his non-hydrokinetic friends to breathe underwater.
 * Water Immunity: Percy can fall from great heights into water, and is unaffected by any amount of water pressure. He does not get wet if submerged in water, unless he wants to. Percy can dry items underwater (as long as he holds onto it), such as a lighter.
 * Water Solidification: Percy can harden water into an almost solid shape. He can use this power to walk on water, by increasing the surface tension of the water to the point where it is solid enough for him to stand on, and water constructs. So far, he has demonstrated creating a strong water shield, and on two instances in The Son of Neptune, he hardened the water into giant hands that followed and imitated the movements of his own hands.
 * Sailing Skills: Percy possesses an intimate awareness of any ship he is on (sailing ships, canoes, motorboats, possibly submarines); being able to telekinetically operate one (as well as anything related to the ocean) because he has perfect bearings on the ocean, he can easily navigate his way at sea.
 * Communication: Percy has divine authority over and can talk (normally and telepathically) to equines and sea creatures who mainly treat him with deference and lordly respect. He can also speak to other children of Poseidon underwater (seen in The Sea of Monsters, in a conversation with Tyson).

Aerokinesis (unknown degree): Percy can summon hurricanes and other types of storms, but the extent to which he can control them is as of yet unknown. Percy's hurricanes have been show to be powerful enough to douse the fires on Hyperion's body, leaving the powerful Titan vulnerable to attack. By the events of The Son of Neptune he is able to sustain the storm with less effort than his first use of the skill against the Titan Hyperion, although it still drains him over time.

Geokinesis (limited): Percy can generate earthquakes and (consequently) cause volcanic eruptions, but his control of this technique is less than that of a child of Hades.

Cryokinesis (limited): Percy can use cryokinesis to a small degree. He is able to use the ice and snow around him to make an icy hurricane, as he does during the battle in Alaska in The Son Of Neptune. He can also manipulate frozen or icy water around him, demonstrated during his interrupted fight with Thalia in The Titan's Curse.

Electrokinesis (limited): Percy used this skill unintentionally on one occasion, while creating his own miniature hurricane to fight Hyperion. Sparks of lightning appeared as his hurricane increased in power. His control of this ability, however, is far less than that of a child of Zeus and appears to be limited to a side effect of his storms.

Heat Resistance: Percy has a far higher than normal resistance to heat and burns, similar to that of a cyclops, due to his father's oceanic nature. He was able to survive being engulfed by lava thrown by the telekhines, though it began to get more painful the longer he was in contact with it, as well not being killed by the super-heated steam from the eruption of Mount Saint Helens.

Toxikinesis (limited): Percy can control and manipulate poisons, as seen when he beats Ahklys in Tartarus. This is limited, though, as poison is only part water. The full extent of this power is unknown.

The Minotaur's horn, he obtained this when he killed the Minotaur after it supposedly killed his mother, Sally Jackson
 * -|Magical Items=

Anaklusmos (Riptide in English), made with celestial bronze, given to him by Chiron to fight monsters. When uncapped, it becomes a 3 foot tall double-edged celestial bronze sword and causes the fear of most monsters around it. Riptide is usually kept as a ballpoint pen when not in use, and will always return to Percy's pocket. It used to be the weapon of Hercules, who got it from Zoë Nightshade. In the movie, Riptide can deflect blasts from Zeus' lightning bolt. When combined with his hydrokinetic powers and Curse of Achilles, Riptide becomes an "arc of pure destruction."

The 12th Legion's Eagle, Percy seized the Eagle from the undead army of the frozen Roman Camp on the Hubbard Glacier during The Son of Neptune. He later used it during the battle at Camp Jupiter, where he used its lightning to destroy hundreds of monsters before passing it to Dakota.

Medusa head, Percy received it at the end of the first book. He cut it off and sent it to Olympus, but Poseidon sent it back. Percy, having no need for it left it with his mom, Sally Jackson. His mom uses the head to petrify her abusive husband Gabe and then sells the resulting "statue" as an art piece named The Poker Player.

Stygian Ice Whistle, a special dog whistle made of Stygian ice that was cooled in the River Styx. It was given to him by Quintus (Daedalus) to summon Mrs O'Leary and shattered after it is blown once. Percy used it when his friends were having trouble fighting an army of monsters in The Battle of the Labyrinth.

Wristwatch shield, a wrist watch which turns into a shield, given to him by Tyson. It was badly dented by Dr. Thorn in The Titan's Curse. Tyson came back and fixed it in the beginning of The Battle of the Labyrinth. It was lost later in Battle of the Labyrinth when thrown at Kampê. It was inscribed with the images of the events of The Sea of Monsters, including Percy fighting the bronze bulls, Annabeth killing the Laistrygonian, Tyson riding Rainbow the hippocampus, and Tyson battling the Hydra whilst holding a box of doughnuts.

Nemean lion's pelt, obtained in The Nemean Lion Skirmish, when he planned the death of the Nemean Lion. He sacrificed it to Poseidon in The Titan's Curse.

Sand dollar, given to him for his 15th birthday by his father. He split it in half and gave 1 half to the Hudson River and 1 half to the East River gods to stop Kronos' forces on boats in The Last Olympian.

Chameleon Armor, he used this in a game of Capture the Flag in the short story of "The Bronze Dragon". It only works from a distance.

Hermes' multivitamins, these multivitamins make the person who ate it to be immune to nearly any attack, which was used by Annabeth Chase during the Sea of Monsters to turn Percy back into a human after Circe turned him into a guinea pig and prevent Circe from using magic against her.

The Golden fleece, used after Annabeth was wounded by Polyphemus, he used the Golden Fleece to heal her. Then it was used to save Thalia's tree at Camp Half Blood.

Pandora's pithos, this was given to Percy by Prometheus to open it and give up hope. Later he gave it to Hestia to look after it, because "hope survives best at the hearth."

Thermos of winds, this was used by Percy and Annabeth in the Sea of monsters to escape the Princess Andromeda and Charybdis. Given to him by Hermes.

Magical Pearls, these pearls can transport a person to the sea when smashed. Given to Percy by a Nereid.

Moonlace, a flower that grows in moonlight (given to him by Calypso). He planted it at a trough at his apartment, to remember Calypso.

Javelins, these aren't normal javelins, because they have a grappling hook, and an explosive setting. Used in chariot races at Camp Half Blood. Used first in The Sea of Monsters.

Daedalus' wings, stolen in a skirmish in the center of the Labyrinth. Now in a trashcan after being thrown away, too damaged for further use.

Winged shoes, given to Percy by Luke Castellan. In the book the wings spring out when the wearer says "Maia." Percy gave them to Grover. It was supposed to be a trap from Luke, as the shoes almost dragged Grover into the pits of Tartarus, due to Kronos dragging them in. In the film he used these to retrieve a pearl.

Travel Rose, which he used in The Sword of Hades to return to the world of the living after having returned Hades' sword.

Love Interests
Annabeth Chase=

"Also, he was reluctant to share his one clear memory: Annabeth’s face, her blond hair and gray eyes, the way she laughed, threw her arms around him, and gave him a kiss whenever he did something stupid."

- Percy thinking about Annabeth



Annabeth Chase is portrayed in the series as Percy's primary love interest and eventually becomes his girlfriend. When Percy first wakes up in The Lightning Thief, he describes her as a "pretty girl with princess curls."

She nursed him back to health after the Minotaur attack. Annabeth disliked Percy when they first met because their parents Athena and Poseidon have a rivalry with each other. Percy eventually developed a crush on her as they both became more fond of each other. Aphrodite told him that they will have a "tragic love life." In The Mark of Athena, Annabeth admitted that she has had a crush on him since they were twelve. Annabeth also stated that she forgave her ridiculous boyfriend (Percy) for everything he's ever done wrong when she realized he rejected Reyna's love for hers.

Annabeth has kissed him (technically) only four times in the original series. Once, after winning the chariot race in The Sea of Monsters, though that was only on the cheek. In The Battle of the Labyrinth, she kissed him again for luck as she leaves him to fight the telekhines at Mount Saint Helens. Then in the dining pavilion of Camp Half-Blood when Percy was trying to show his feelings towards her prior to all the other campers throwing them in the canoe lake in The Last Olympian and again underwater in the canoe lake which Percy described as "pretty much the best underwater kiss of all time."

Annabeth tells Piper McLean that Percy kissed her good night before he disappeared, in The Lost Hero. Percy mentions in The Son of Neptune that whenever he did something stupid Annabeth would kiss him, going on to say that she must of kissed him a lot, which meant he probably did stupid things a lot. In The Mark of Athena, they kiss many times: once when they reunite, once before Percy, Piper, and Jason leave to meet Bacchus, twice in the stables on the Argo II, once before Annabeth leaves with Piper and Hazel to search for a ghost at Charlestown Harbour, once before Annabeth goes to find the map for the Mark of Athena, once after Percy successfully defeats Chrysaor, and once before they depart (when Annabeth goes on a motorcycle with Tiberinus and Rhea Silvia.

Annabeth Chase was jealous for some time, of Rachel Elizabeth Dare, the clear-sighted mortal girl, because Percy spent a lot of time hanging out with her, but Annabeth eventually befriends her after Rachel became the Oracle. Annabeth has also shown jealousy toward Calypso when Percy arrived back at camp after being marooned for two weeks on Calypso's island of Ogygia.

In The Last Olympian, Annabeth states that Percy looks cute when he's worried. It is also well mentioned that she and Percy have officially become a couple and had been dating for four months before he disappeared a short time before The Lost Hero. When Percy went missing, Annabeth was out of sorts trying to find him (even counting how long it's been up to the minute). In the beginning of The Son of Neptune, Percy's only memory of his past life is Annabeth, but it is "frustratingly dim." As the story progressed, she becomes the first person he remembers fully. When the Argo II approaches, with Annabeth on it, Percy states that "If things went right, today would be the best day ever."

Later, Percy gets furious at Hera when she states that Annabeth is a troublemaker and she will cause the most problems during the quest for Greece and Rome, in which Percy states, "She's the person I want most watching my back," and with a fist of water of anger he smashes Hera.

Percy also sees a possibility of a life of college and marriage with Annabeth while at Camp Jupiter when inside the protected city of New Rome. While they were having those two months of dating they had become closer, romantic and more loving toward each other.

When Luke Castellan was still around, Percy would get jealous about how Annabeth would get protective and caring toward him whenever he was accused. It was Luke, though, who made Percy realize his true feelings for Annabeth in The Last Olympian.

In The Mark of Athena, near the end of the book, they fall into Tartarus holding hands when Percy swears that he will never let her go again. And that leaves us in a cliffhanger until The House of Hades.

""She would always be my biggest what if""
 * -|Calypso=

- Percy about Calypso in The Battle of the Labyrinth

Calypso and Percy first met when Percy was stranded on her phantom island of Ogygia. Calypso had healed Percy after he was severely weakened at Mount Saint Helens. Percy later learns that the immortal Calypso was condemned to live on the island forever after supporting her father, Atlas. She asks him to join her and live with her forever where he would become immortal, but he turns her down, even though it would save him from the prophecy (if he had stayed on the island, he would never turn 16). Calypso was in love with Percy, and he somewhat loved her as well. Percy considered her more beautiful than Aphrodite, "but I wouldn't say that out loud or she'd blast me to ashes,". In The Last Olympian, Percy requested that the Olympians show leniency to the Titans who did not support Kronos, freeing Calypso from her prison. Percy has even stated, that for as long as he lived, she would always be his biggest "what-if". It was revealed that Hera sent Percy to Calypso so she could heal him, while The Fates allowed Percy on the island as he was the kind of person Calypso couldn't help but fall in love with. However, like all other heroes that land on her island, Percy had to leave her, which too was part of her punishment.

""I found myself calling on Rachel a lot, I needed to remember that the mortal world was still out there.""
 * -|Rachel Elizabeth Dare=

- Percy about Rachel

Rachel Elizabeth Dare is Percy's only human love interest. Before The Last Olympian, Percy notes that he spent a great deal of time with Rachel. He stated that while he was in the mortal world, he could always call Rachel and she'd be there so they could hang out together. In the beginning of The Last Olympian, the two are seen on the beach in Paul's Prius driving around. Percy says it was as if his dad were keeping the sea nice, just for them. While they are alone, Rachel admits her feelings in the form of a hypothetical question. However, Beckendorf and Blackjack land on the hood of the car before Percy is able to answer (though he remarks to himself that he felt like one of Apollo's sacred cows- "dumb, slow, and bright red"). After he gets up to leave, Rachel kisses him anyways and tells him to go save the world. It is unsure what Percy's exact feelings for Rachel are, as he never openly states them (though, this may be because of Aphrodite making it hard for him, as she said she would because she likes him). Later on Olympus, Rachel tells Percy that she was drawn to him due to his introducing her to the Olympian world, but that they could never be together as she is meant to become the new Oracle (he thinks she dumped him, "which kinda stunk since we were never dating in the first place"). In the end of The Last Olympian, Rachel and Percy are now simply good friends.

Reyna was bitter towards Percy at the beginning of The Son of Neptune but gradually began to warm up to him as the book went on. She interrogates Percy and throughout the encounter she implies that they've already met. It is later revealed that she once lived on Circe's island, where Percy and Annabeth unleashed a crowd of pirates, resulting in her and her sister being taken captive. She asks Percy to consider taking Jason's place as praetor and they could be "friends." Percy seems to feel that Reyna is hinting that it could result in the two of them being romantically involved. He declines Reyna's offer, stating that he already has a girlfriend. Near the end of The Son of Neptune, Reyna smiles when Percy arrives in battle. During the battle, when she sees her sister Hylla, she glances at Percy with a look that says:'' I could hug you right now. ''
 * -|Reyna Ramírez-Arellano=

In The Mark of Athena, Annabeth realizes from Reyna's tone of voice when talking to her that Reyna tried to make a move on Percy, but was rejected because of his love for Annabeth.

Friends
Grover= "Won't change anything, you're still my best friend."

- Percy to Grover



Grover Underwood and Percy have been best friends since they were in middle school in Yancy Academy. At the time, Percy would protect him from bullies and others that would pick on him, but he was not aware of Grover being a satyr. Grover is also the one who helped Percy to get to Camp Half-Blood and helped him on his very first quest in The Lightning Thief. Their friendship is as deep as any of Percy's relationships (excluding Annabeth, his girlfriend) as shown in The Sea of Monsters, when he saved Grover from being killed by the Giant Polyphemus and Grover establishing an Empathy link that connects them emotionally allowing him to know if the other is in danger and what their feelings are (such as when Percy got done talking with Aphrodite and Grover knew that she and him were talking about his love life). Grover had all the satyrs looking for Percy when he vanished in The Lost Hero.

Thalia Grace and Percy first meet at the ending of The Sea of Monsters when she was turned back into mortal form with the Golden Fleece, introducing herself as the daughter of Zeus. As a daughter of Zeus, Thalia was always looked at when in difficult situations, taught to master more complex skills, such as playing with the mist, making Percy feel rather intimidated by her. During The Titans Curse, their relationship becomes a Love-Hate relationship that a brother and sister would have, even going as far as fighting with their elemental powers. By the end of the quest however, Thalia considers him a friend, showing him this when she hugged him after she joined the hunt and became a Hunters of Artemis, stating "I am honoring a friend."
 * -|Thalia=

During the Titan War, she and the other Hunters aided Percy and Camp Half-Blood. She also decided to make lunch plans with him and Annabeth after the war was over. During The Lost Hero, Thalia is sent by Artemis to search for him and was worried for his well being showing, that they still have a strong friendship together.

"At this point, I was ready to stick the kid in a meat-flavored sack and throw him to the wolves."
 * -|Nico=

- Percy thinking about Nico



Nico di Angelo has the ability to annoy Percy Jackson quite easily when they first met by asking Percy several questions in The Titan's Curse. However, after go on a quest with his sister, Bianca di Angelo, he understands more about his past. After Bianca dies, it is Percy that decides to break the news to Nico. Nico takes it very hard and begins to hate Percy, blaming him for his sister's death before running away from camp.

During The Battle of the Labyrinth, Percy has dreams about Nico and feels bad for him. While searching for Daedalus in the Labyrinth, Percy runs into Nico at the Triple G Ranch. He completes a job for Geryon to free Nico, even at the risk of Percy having to stay there himself if he fails. Even though Geryon double-crossed Percy, after his defeat, Percy asks Nico to stay on the ranch to keep him safe. Nico begins to open up to Percy more and rushed into the Labyrinth again after King Minos told him Percy was in danger. During the quest, Nico saved Percy many times, especially when Kronos first rose from his sarcophagus in Luke's body; creating a large wall of black rock between them. He even aided Percy when the Titan Army began to attack Camp Half-Blood, but refused to stay. When Nico arrived at Percy's house with a plan to help defeat Kronos, Percy invited him instead and offered him some of his birthday cake.

In The Last Olympian, Percy and Nico have a short falling-out. In order to gain information on his mother, Nico lead Percy to the Underworld to unknowingly speak to his father, Hades. Hades double-crossed Nico and put Percy in his dungeon. Percy becomes angry at Nico for awhile, even after Nico saved him and helped him bath in the River Styx. During the Battle of Manhattan, Percy asks Nico to get his father to help, as Nico is the only one that can; even though Nico wants to stay and help in the battle.

In The Son Of Neptune, Nico meets Percy (who has no memory of his past), but says they have never met because Percy needs to find his own way. When Percy does remember Nico, he becomes angry all over again and plans on wringing Nico's neck when he finds him, almost forgetting that Gaea had mention capturing him. During The Mark of Athena, Percy tries hard to free Nico before he runs out of air. After saving him and almost falling into Tartarus, Percy trusts Nico to lead the other to the Doors of Death on the mortal side so they can meet.

In The House of Hades, it is revealed that Nico has a crush on Percy.

"Clarisse: When you, uh, had that vision about your friends… Percy: ''You were one of them. Just don’t tell anybody, okay? Or I'd have to kill you."
 * -|Clarisse=

- Clarisse and Percy

Clarisse La Rue and Percy have a rough relationship. Clarisse dislikes Percy at first for dousing her in toilet water when he first arrives at camp (even though she was trying to dunk his head in the toilet). She later learns that Percy beat her father, causing her and her cabin to dislike Percy. They manage to grow a bit closer in The Sea of Monsters when Percy manages to free her from Polyphemus and sends her ahead with the Golden Fleece, a gesture she greatly appreciates. During The Demigod Files, Percy helps Clarisse get her father's chariot back and has a vision of his friends in danger. When Clarisse asks if she was one of the people he saw, he says yes, but not to tell anyone. While the two can at least stand each other by the end of the original series, they do have great respect for the other.

"Boys, I'm sure you both would've been wonderful at killing each other. But right now, you need some rest."
 * -|Jason=

- Annabeth to Jason and Percy after their fight

Jason and Percy have first meet in The Mark of Athena and have been shown to be on good terms. Percy says that Jason "thinks the same way he does" and mentioned a "spark of friendship." They both share many similarities: both are sons of one of the Big Three and extremely powerful demigods; both are excellent swordsmen; both are leaders at their respective camps; both hate Octavian; and both were chosen by Hera to be switched in order to bring the seven Heroes of Olympus together. Annabeth Chase calls their growing relationship a "budding bromance." While fighting Otis and Ephialtes, the two are able to work well together, and they both feel regret about being forced to fight each other by eidolons. It is also shown that when working together their powers get more intense when they created a huge storm at Fort Summer, while fighting the Romans.

The two also have a bit of a rivalry. After the two were possessed and forced to attack each other, Jason apologizes and says that he could have killed him, which Percy quickly turns around and says he could have done the same. Also during a meeting, both Percy and Jason go for the chair at the head of the table and Jason's hand gives off sparks. The two have a silent standoff until Annabeth ultimately takes the seat.

After Percy examines himself and his Fatal Flaw, he realizes that he feels responsible for everyone on board, including Jason. Because of this, while they are at sea he gets nervous when it is Jason's turn to take watch and feels like he should be the one to protect everyone.

All throughout The Son of Neptune, Percy and Hazel remain very close friends. When Percy first arrives, he saves her and Frank's lives. After, Reyna tells Hazel to show Percy around Camp Jupiter and takes him to Octavian to see whether or not he should join the legion. During evening muster, Hazel says she will stand for Percy, making him a part of the Fifth Cohort. Once, Hazel saved Percy from drowning in quick sand by Gaea. During times of distress or confusion, Percy and Hazel comforted each other and gave advice in a sibling manner. Percy also stated that Hazel was too important to him and wouldn't let anything happen to her. Hazel even kisses Percy on the cheek, even though Percy claims it was a total sisterly kiss.
 * -|Hazel=

Percy and Piper have first meet in The Mark of Athena, but they are not particularly close and haven't gotten to know each other well yet. Piper seems to think of him as a troublemaker and can see why Annabeth likes him, but feels slightly unimpressed with him after hearing so many stories about him and after comparing him to Jason. Despite this, Piper is shown content having either Jason or Percy being the "leader" of the seven. Piper technically saves his life twice during their quest for the Athena Parthenos and Nico di Angelo. Percy is shown at least twice having faith in Piper's charmspeaking abilities. Percy also shows concern for her by checking up on her after she hurt her shoulder.
 * -|Piper=


 * -|Zoë Nightshade=

Zoë Nightshade is the daughter of Atlas. At first she did not like Percy, but then she came to respect him after it was his plan that helped defeat the Nemean Lion, even giving Percy the pelt after the fight. During the quest, Percy learned more about Zoë's past while having dreams, learning that Hercules had betrayed her after she gave him Riptide. Percy even comes to appreciate a lot of Zoë's good qualities as they spend more time together. Before Zoë's death at the hands of her father, she compliments Percy by saying that he is nothing like Hercules (who betrayed her), and deserved Riptide. After she died at the top of Mount Othrys, Artemis transformed her into a constellation named 'the Huntress' after her death by Artemis, as Zoë is part of the Hunt.

Percy still remembers her from time to time, as he saw her constellation when on Calypso's island, as well as remembering her sacrifice in The Son of Neptune, despite having no memories of his past at the time.

Companions
Blackjack= Blackjack is Percy's pegasus and his loyal friend. While on the Princess Andromeda in The Sea of Monsters, Blackjack was captured and was planned on being recruited into the Titan Army, until Percy set him free. After that, Blackjack became Percy's personal stead and came whenever Percy needed him. Blackjack will also comes whenever any sea creature needs Percy's help, normally in the middle of the night (much to Percy's annoyance).

After Percy went missing in The Lost Hero, Blackjack is one of those mentioned to be out looking for him.

Mrs.O'Leary is Percy's pet hellhound, whom he received from Daedalus before he died in Battle of the Labyrinth. Despite being rather large, even by hellhound standards, Mrs. O'Leary is incredibly friendly toward Percy, licking him anytime they meet. Mrs. O'Leary is very protective of Percy or any of his friends, normally aiding in battles by attacking enemy monsters. In fact, just Mrs. O'Leary's bark and size are enough to frighten other monsters.
 * -|Mrs. O'Leary=

Percy is also very protective of Mrs. O'Leary. When Percy was in the Underworld with Nico and Mrs. O'Leary, he called her off when Nico betrayed him because he didn't want his dog being hurt by the Furies. Despite Mrs. O'Leary being angry with the order, she still obeyed. Mrs. O'Leary and Tyson search for Percy together after he goes missing, eventually finding him at Camp Jupiter and helping fight back the Giant Army.

Family
Sally Jackson= "Mom; Hey, I’m alive. Hera put me to sleep for a while, and then she took my memory, and…Anyway, I’m okay. I’m sorry. I’m on a quest—I’ll make it home. I promise. Love you."

- Percy leaving a message for Sally

Percy loves his mother, Sally, dearly. He always wishes to make her happy and would do anything to keep her. He is very mindful of her safety, even considering to sacrifice himself for her once. He also left the moonlace from Calypso's Island under her care. In The Son of Neptune, after failing to communicate with Annabeth, he leaves her a phone message letting her know he is safe.

Sally also cares deeply for her son. She worries about him any time he is on a quest and cried with Annabeth Chase when he went missing. Despite Percy always looking for his mom's permission and approval as he gets older, Sally realizes that Percy is getting too old to always listen to her and tells him to do what he thinks is right.

"The way our sons and daughters act in our names…well, it usually says more about them than it does about us. And you, Percy, are my favorite son."
 * -|Poseidon=

- Poseidon to Percy



Poseidon and Percy have a complicated relationship. Percy has a strong admiration and pride for his father, though he initially resented him as he felt he had abandoned him and his mother. Percy let go of this when he learned his father cared for him. Though Percy has met his father only occasionally, he cares very much for his approval and greatly respects him. Poseidon in turn holds a fierce pride for Percy, once calling him a hero greater than Hercules, and claiming him to be his favorite son. An important memory for Percy before he knew he was a demigod was of Poseidon visiting Percy when he was in his cradle in a warm glow and a warm smile. Despite caring for his father, Calypso makes him wonder if he only fights for the Olympians because Poseidon is his father. Percy hasn't been contacted by Poseidon at all after the events of The Last Olympian.

"Sally, I can't claim to know what you and Percy have been going through all these years. But it sounds to me...it sounds like Percy is doing something noble. I wish I had that much courage."
 * -|Paul Blofis=

- Paul to Sally

Percy is at first wary of Sally's new boyfriend, Paul Blofis, but eventually warms to him. Percy is very happy to have Paul as his stepfather when his mother gets married to him. Interestingly, both Percy and Poseidon at first mispronounce Paul's name as "Blowfish."

Percy loves his half-brother Tyson, but couldn't believe they were related when Poseidon first claimed him. He was also kind of ashamed to have a monster for a brother, thinking that his father was trying to make fun of him and that Poseidon gave him no warning about Tyson. This eventually changes after Percy thinks Tyson died when the CSS Birmingham exploded (with Tyson in the engine room). He feels regret for how badly he treated Tyson before and wishes he could take it back. When Tyson turns out to be alive, Percy accepts him as his brother. He and Tyson have gone on many adventures together, and Tyson always looked up to Percy as his older brother. Tyson even used his knowledge of the forge to make a wrist watch that transforms into a shield for Percy. The shield is decorated with images of their adventures engraved upon it, but it was later lost in the Labyrinth. Tyson revealed that he had prayed to Poseidon for a friend, and he had sent him Percy.
 * -|Tyson=

Percy hated his former stepfather. When he was young, he called his stepfather "Smelly Gabe", because he smelled like old pizza wrapped in sweaty gym shorts due to his cigars and non-bathing habits. Sally uses the Medusa's head given to her by Percy to turn him into a statue. She sells him and he is currently on display in an unknown museum.
 * -|Gabe Ugliano=


 * -|Frank=

"You singlehandedly took out three basilisks while I was sipping green tea and wheat germ. You held off an army of Laistrygonians so that our plane could take off in Vancouver. You saved my life by shooting down that gryphon. And you gave up the last charge on your magic spear to help some defenseless mortals. You are, hands down, the nicest child of the war god I’ve ever met…maybe the only nice one."

- Percy to Frank

In The Son of Neptune, it is found out that Frank Zhang is related to Percy, although Percy would be his Great, Great (a thousand times)... Uncle. Frank Zhang's ancestor, Periclymenus is the relation linking them. While Percy tries to explain this to Tyson, he caves and says they are all brothers. Frank is first introduced when guarding the entrance to the Roman camp, Camp Jupiter. Percy saves his life when the two gorgons who have been following him, grabs Frank by the arms. Before being claimed by Mars, he hopes that Apollo, god of music, prophecy, poetry and archery, will claim him due to his excellent archery skills. Though he doesn't want to be related to Octavian. ​

Other Acquaintances
Luke Castellan= "Percy was almost the same age now as Luke had been then. He could understand how Luke became so spiteful. In the past five years, Percy had been a pawn too many times. The Olympians seemed to take turns using him for their schemes."

- Percy comparing himself to Luke

At the beginning of the series in The Lightning Thief, Percy thought that Luke Castellan was a cool guy and thought that they would become close friends when he came to Camp Half-Blood. Luke helped train Percy in sword fighting and gave him moral support as a new comer, but at the end of the book it is shown to him that Luke was the real Lightning Thief and summons a pit scorpion to kill him and before he leaves, he tells of his bitterness and revenge against the Olympian gods. In The Sea of Monsters, Percy and Luke fight aboard the Princess Andromeda and Percy has him reveal that he was the one who poisoned Thalia's pine tree to the entire Camp Half-Blood. When Luke was supposedly killed in The Titans Curse, Percy is told by his father that Luke was not dead and that he was alive causing him to become angry and filled with more hate. During The Battle of The Labyrinth, Percy witnesses Luke become taken over by Kronos and before that he thrown into a fight against a giant by him. When they go into The Titan War after Kronos has been killed by Luke, he angrily tells Percy with pleading eyes that he didn't want the same thing happen to the other unclaimed demigods wind up like him and Percy honors that promise to him by saying that as his wish that all the children of all the gods will be recognized and cared about. Percy also showed signs of jealousy toward Luke because of Annabeth's affection toward Luke (and Percy's growing feelings for Annabeth at the time). During The Last Olympian, Kronos states that Luke feared Percy.

During The Mark of Athena, Percy starts remembering how angry Luke was with the Olympian gods. Then after seeing Bacchus just watch himself and Jason fighting for their lives against Otis and Ephialtes, he understood why. Because of this, he could understand Luke a little better.

"I am your trainer, your teacher. That is not the same as being your leader. I will go gather what allies I can. It may not be too late to convince my brother centaurs to help. Meanwhile,you called the campers here, Percy.You are the leader."
 * -|Chiron=

- Chiron to Percy

Percy has a deep respect and love for his Centaur teacher Chiron, as he helped him as "Mr. Brunner" when he was still attending Yancy Academy and has helped him try to clear his name when he was blamed for being The Lightning Thief. Chiron in return shows a deep love for Percy as that of like a son and became pained when he was missing in The Lost Hero, having almost raised Percy into a young man himself in a way of that a teacher would train and raise their student.

"On the bright side, both Jason and I outrank you, Octavian. So we can both tell you to shut up."
 * -|Octavian=

- Percy to Octavian

When they first met, Octavian was suspicious about Percy, thinking that he's a spy for the Gigantes. At the end of the book, Octavian disliked Percy because he stole his chances of being praetor. He also accused Percy of leading the Greeks to attack Camp Jupiter. Percy has grown a strong dislike toward him as he was black-mailing Hazel about where she really came from, even going as far as saying that he would uncap Riptide from his pocket to protect her from Octavian if she gave him a signal.

Gods
Zeus= "To show you my thanks, I shall spare your life. I do not trust you, Perseus Jackson. I do not like what your arrival means for the future of Olympus. But for the sake of peace in the family, I shall let you live."

- Zeus to Percy

Zeus has mixed feelings for his nephew. He was upset over his birth because it violated the pact that he, Poseidon, and Hades made after World War II to not bear any more children, even as he himself did no better by conceiving Thalia and Jason Grace, and was angered by his nephew personally when he refused his offer of godhood. Zeus is nevertheless thankful for the demigod's past services to both himself and Olympus as a whole. During the winter solstice council meeting in The Titan's Curse, he voted to let him live even when it was no longer tied to the fate of Thalia. However, Zeus once warned Percy that he will strike him down if he ever travels in the sky. Though it is never brought up again by his uncle, Percy is very mindful of traveling by land or sea. However, it seems that in extreme situations, Percy is allowed to travel by plane as evident in ''The Son of Neptune. ''He also allows Percy to fly on Blackjack, and allows him to be carried by the Angel Statues at Hoover Dam.

"That means I can smash him to a pulp as often as I want, and he'll just keep coming back for more. I like this idea."
 * -|Ares=

- Ares when Percy was offered godhood

The god of war despises Percy for wounding him during their duel in The Lightning Thief. It is dangerous that they are on bad terms because Ares thinks highly of revenge and is quite violent. Ares puts a curse on Percy's sword which came into effect during the battle with Atlas. When Percy was later offered godhood, Ares agreed with it because he could fight Percy anytime he wanted and wouldn't have to worry about killing him. As Mars, he seems to treat him with a mixture of amusement and annoyance.

Like Zeus, Hades has a mixed relationship with his nephew due to his natural dislike of heroes. He once believed Percy had stolen his Symbol of Power until the boy later proved his innocence and returned the helm which the god repaid by returning the boy's mother whom he had kidnapped. In The Last Olympian, Hades briefly imprisoned Percy in his dungeon to ensure Nico became the child of the Great Prophecy. Later, he was convinced by his son to aid Percy and also played an indirect role in his wish for general acceptance and amnesty through past business advice to Nico for getting a "solemn oath." Given that Percy is directly responsible for his position on the council with full privileges and rights, it would be fair to say that Hades has an improved opinion about him.
 * -|Hades=

"Do not judge me too harshly, half-blood. Wise counsel is not always popular, but I spoke the truth. You are dangerous."
 * -|Athena=

- Athena to Percy

Athena is on neutral, if on somewhat unfriendly terms with Percy. She disapproves of his relationship with her daughter, Annabeth both because of his fatal flaw and he is the son of her rival Poseidon. In The Titan's Curse, she guided him at the Hoover Dam in order to save Annabeth though she also voted that he be destroyed at the winter solstice meeting. In The Last Olympian, Athena had Hermes send a message to Percy as well as Annabeth, advising how to best prepare for the invasion but also used the opportunity to remind Percy of her displeasure about his relationship with her daughter. Despite her disapproval of him, it was Athena who convinced the other Olympians to honor his request for recognition though she later confronted him about his decision to decline godhood. He admitted Annabeth was the main reason much to her dislike.

During The Mark of Athena, Annabeth pleaded with her mom in the form of Minerva to help her find Percy. Minerva on the other hand hated the Romans, and felt that if Percy had joined them, he should die with them. The fact that Annabeth loved Percy too much to let him go caused a rift between Annabeth and her mother.

Hera neither likes nor dislikes Percy. Both Percy and Annabeth disagree with her views about family, siding with her son Hephaestus even though Hera helped them several times in The Battle of the Labyrinth. Percy is close friends with Thalia, one of Zeus' illegitimate children whom Hera naturally despises. In addition, Percy is the love interest of Annabeth whom Hera cursed for offending her, much like Ares did to Percy for humiliating him. In The Last Olympian, she makes Ares write a thank you letter to Poseidon for saving Olympus, hinting that she may care for him. In The Son of Neptune, Hera sent Percy to Camp Jupiter, have erased most of his memory to her nephew's great annoyance. As Juno she is noticeably more patient with him and answered his questions in his dream without complaint. She commented she considers Percy "a loose cannon" and "impulsive" but also "unswervingly loyal" as well "the glue that will unite the seven". Percy mentions he understands her motives and reasoning for uniting the seven but still is annoyed having lost 8 months of his life as a result.
 * -|Hera=

Both Dionysus and Percy share a mutual dislike of each other. Dionysus detests all heroes in general due to Theseus' treatment of his wife Ariadne while Percy resents his antagonistic attitude towards him and the rest of the campers. On the other hand, Dionysus did once save Percy's life during his quest to save Annabeth and Artemis. He also correctly remembered Percy's name in a conversation they had after he saved Percy on said quest (Dionysus is notorious for mixing up and forgetting the names of campers though they know that he does this on purpose). Then at the end of The Battle of the Labyrinth, Dionysus gives Grover his support after learning of Pan's death and cures Chris Rodriguez of his madness. Despite their mainly tense relationship, Dionysus favors Percy with his advice, aid, and judgement more than any other god in the series. This indicates that Dionysus likely acknowledges Percy, especially after the end of the second Titan War though he did tell Percy he would still try to make his life miserable at camp. As Bacchus, they treat each other the same as normally despite Mr. D being Roman aspect of himself as he helped Percy fight the Twins Giants inside the Colosseum, Rome. He also warns Percy that his future is in extreme danger.
 * -|Dionysus=

"Good-bye, lad. You did well, destroying the telekhines. I’ll always remember you for that."
 * -|Hephaestus =

- Hephaestus to Percy

Traditionally, Hephaestus has close ties with Percy's father Poseidon in the form of the Cyclopes who work for both of them. Hephaestus is personally grateful to Percy for having discovered and eliminated those who invaded his forge under Mount Saint Helens even though he not only destroyed the forge but ultimately freed Typhon. Though he was impressed with the boy's performance in the battle for Olympus, he mentions to Leo in The Lost Hero that he sees Percy as an ingrate and upstart for refusing immortality and demanding that the gods pay closer attention to their children.

"You did well, for a man."
 * -|Artemis=

- Artemis to Percy

Percy is on Artemis' good side since he helped find and save her in The Titan's Curse. She even declares him a hero before Olympian Council and calls him a man rather than a boy after he helped her defeat Atlas. Percy's friendships with Thalia and Zoe as well as his loyalty to others regardless of gender places him in the highest regard in her eyes. In The Lost Hero, she sent her Hunters in search of him, deliberately defying her father's orders in order to do so. It is unknown but likely that she knows what happened to him.

Percy is on good terms with Hermes who convinced him to go on a quest in The Sea of Monsters and gave him magic items to assist him in his journey. He also explained the relationship between gods and heroes to him. Later, their relationship soured after realizing that Percy could not save Luke Castellan. After the war, their relationship was mended upon Percy's counseling and sympathy for Hermes' feelings of powerlessness for Luke's fate. Hermes trusted Percy enough to seek him out for help in retrieving his stolen Caduceus, and repaid Percy's favor by treating him and Annabeth to a magically arranged dinner in Paris for their one-month anniversary.
 * -|Hermes=

"Always some monster. But my dear Percy, that is why the others are on this quest. I'm more interested in you."
 * -|Aphrodite=

- Aphrodite to Percy

The goddess of love and beauty favors Percy, having expressed an interest in his relationship with Annabeth Chase. She told that Percy that she planned to meddle with his love life, intending to make it a "nice tragic love story". It was Aphrodite who arranged for Percy to meet Rachel and later Calypso, causing him to be confused about his feelings for Annabeth.

Apollo tends to side with Percy and can see the good he does. While Percy goes on a quest to try and save Apollo's sister Artemis in The Titan's Curse, he helped Percy directly which goes against the ancient laws of gods, but put his faith in Percy that he would be able to save her.
 * -|Apollo=

Percy only met Persephone twice but he came off worse both times. In The Demigod Files, Persephone tricked Nico, Percy, and Thalia into recovering Hades' new sword. In The Last Olympian, Percy is considered by Persephone to be brave, but she does not vouch for him against Hades and shrugs indifferently when Hades states that he will imprison Percy and make himself king of the gods when Nico turns sixteen.
 * -|Persephone=

Aside from his father, Hestia is possibly Percy's best relationship with a god. Percy actually first saw Hestia his first day at camp but thought she was an eight-year-old girl. Hestia helps Percy several times in The Last Olympian which he repays by entrusting her with Pandora's pithos as "Hope survives best by the hearth." Percy's respect for her goes as far for him to tell her she is "the Last Olympian and the most important".
 * -|Hestia=

Enemies
Kronos= He is the main antagonist of the whole story, but being the father of the Big Three gods, he is Percy 's grandfather. Like Percy said, "Being the son of Poseidon and all, I guess that makes him my grandfather." Percy thought it so strange he dismissed it completely. Nevertheless, Percy is Kronos' grandson. Kronos has tried to recruit Percy several times, but to no avail.

He is the only Titan that is on the good side with Percy. In The Sword of Hades (in The Demigod Files), while he is fighting Percy, Percy tricks him into splashing into the River Lethe, wiping his memory clean. He emerges believing he is a man named Bob and his friend is Percy. Now he assists Percy whenever he requires his assistance.
 * -|Iapteus=

He and Percy have a similar hateful relationship. He and Percy fight and he easily got furious; Percy had a mini-hurricane around him, extinguishing Hyperion's light. Soon, the satyrs' magic transformed him into a tree in The Last Olympian.
 * -|Hyperion=

As a Titan, his curse was to carry the weight of the sky on his shoulders. Close to the events of the Titans Curse he succeeded in getting Luke to carry the sky so that he could fight. Then he tricked Annabeth into carrying it, who then got Artemis to take the burden. Percy then relieved Artemis of the sky so she could fight. Finally Atlas ends up with the sky again because of Percy, so it is heavily implied that Atlas hates Percy.
 * -|Atlas=

Prometheus and Percy have mixed feelings for each other. Prometheus says he likes heroes because Hercules freed him from being chained to a rock with vultures. Although Percy regards him as "a slimy worm," he becomes more respectable of him after he shows Percy a vision of Hermes lecturing Luke. It is unknown if they meet again, and if they do meet again, it will probably be under better terms as they are now no longer enemies,but it will still be unknown if Prometheus will be assisting the Titans or the gods now.
 * -|Prometheus=

Percy and the giant Polybotes have a large amounts of dislike for each other, as Polybotes is the Bane of Neptune and has attempted to capture, torture, and eventually kill Percy. According to Polybotes, Percy's blood will bring back the Earth Mother, but before that he wants to torture Percy and keep him as a pet until the time is right.
 * -|Polybotes=

Alcyoneus has respect for Percy, as he has been watching him all his life and knew he was the one to defeat Kronos. However, because of his orders from Polybotes, he apologizes that he will not be able to kill him. Beyond this conversation, the two share no more interaction.
 * -|Alcyoneus=

Throughout The Son of Neptune, Gaea, the goddess of the Earth has been sending Percy dreams and speaking to him. While she is speaking to him, she told him affectionately that he was her "important little pawn" and that he would be the ultimate key to the Olympian's defeat. In turn, Percy dislikes the goddess for her trying to destroy his friends at both Camp Jupiter and Camp Half-Blood, as well as the Olympians, as this includes his father. In The Mark of Athena, Gaea personally chose Percy to be her sacrifice for blood to make her raise, she also appears to him in a near like human form calling him her "dear friend" along with her "little darling pawn". She is also very active towards as she appears to him more than the other seven, appearing in a human-like form during The Mark of Athena, telling him to enjoy Tartarus and that he will fall to her.
 * -|Gaea=

According to Alcyoneus, Gaea hates Percy more than anyone else, with the possible exception being Jason Grace.

The Lightning Thief
Percy is played by Logan Lerman. His character's age has been increased from 12 to 17 to appeal to older viewers. Throughout the film, Percy has not been shown to display his ability to remain dry underwater, or anywhere else either.

Percy Jackson-Main Character

Video Game
In the video game, Percy appears as the main protagonist. After getting more than three characters, besides Percy, the player may decide upon switching, however, Percy cannot be replaced. His attacks are mostly Water based. He also has a few Physical attacks and one Poison attack. He is resistant to Water but is vulnerable to Poison. The table below contains all the moves he can learn throughout the game.

Etymology
Perseus is a Greek name coming from the original Hero, Perseus, meaning "Destroyer" or "To destroy" as this could compare to Percy destroying many schools and monsters in his lifetime. It could compare to his father, Poseidon, as he is the God of Earthquakes as he destroys places due to the earthquakes. His mother, Sally Jackson, named Percy after the Hero Perseus as he was the only hero who had a happy ending in Greek myths.

Jackson is a very common name in the English and Scottish origin, coming from "Son of Jack" as many U.S political parties.

Trivia

 * Percy's birth date, August 18, wasn't revealed until The Last Olympian.
 * Percy's real name is Perseus. His mother named him this because Perseus was one of the only heroes in Greek mythology to have a happy ending (although Percy favored Heracles).
 * Percy is a son of Poseidon, but the original Perseus was the son of Zeus.
 * It is stated in The Lightning Thief that Percy has never obtained a grade higher than a C-, though in The Ultimate Guide his grade in science was a B-.
 * Though Percy has said many times in the series that he dislikes Clarisse, in The Demigod Files he reveals that he really does care about her, and considered her as a friend. Clarisse feels the same way about him.
 * It is also notable that Percy is horrible at archery as shown in The Battle of the Labyrinth, The Lightning Thief, and The Demigod Files. However, he has improved as it is shown in his report card that "he has stopped shooting his own teammates."
 * Percy has done many things that previous demigod heroes and mortals have such as:
 * Slayed the Minotaur twice (once in The Lightning Thief, and later in The Last Olympian), defeated Procrustes, and entered the Labyrinth as Theseus did.
 * Killed Medusa as Perseus did. (The Lightning Thief)
 * Got the Golden Fleece as the first Jason did. (The Sea of Monsters)
 * Battled and defeated the Nemean Lion, fought the Eurythian boar and the Hydra and entered the Garden of the Hesperides as Hercules did. (The Titan's Curse)
 * Entered the Underworld alive (multiple times) and returned alive as Hercules, Orpheus, and Houdini did.
 * Bore the Curse of Achilles as Achilles did. (The Last Olympian)
 * Killed a snake as a young child as Hercules did.
 * Faced the Sirens, Scylla and Charybdis, Circe, and Laistrygonians as Odysseus did.
 * Taunted Polyphemus (by insulting him and then saying that he was Nobody) and escaped his cave as Odysseus did. (The Sea of Monsters)
 * Took the Gray Sisters' Eye and threatened them for directions to a location as Jason and Perseus did. (The Sea of Monsters)
 * Carried Hera/Juno in another form across a river like Jason did. (The Son of Neptune)
 * Held the weight of the sky like Hercules did. (The Titan's Curse)
 * He has fought a total of four Titans, two of which he defeated (Artemis ultimately defeated Atlas). He also defeated a Giant, a feat which no other hero had accomplished other than Jason Grace who dueled Porphyrion, and Hercules, who fought alongside the gods against Typhon, and a Giant and won both battles.
 * On the cover of The Battle of the Labyrinth he is seen opening Kronos' sarcophagus, while in the book he was wearing Annabeth's invisible Yankees cap.
 * He is claustrophobic, as shown when he went up the arch. However, this doesn't seem to affect him in the Labyrinth.
 * Some of the reasons that Percy Jackson got expelled were "accidentally" aiming a Saratoga battle cannon at his school bus, and hitting the wrong lever on a catwalk that made his class take an "unplanned swim" into the shark pool. Both are mentioned in The Lightning Thief.
 * During The Son of Neptune the only things Percy remembers are Annabeth, the fact that he is a demigod, and that Annabeth had some vague connection with San Francisco as well as her being his girlfriend, her looks, and the way she laughed and kissed him every time he did something stupid.
 * Poseidon mentioned that Percy has risen above every hero, even Hercules.
 * Percy is the only child of the Big Three without any known living demigod siblings so far.
 * Percy, like Annabeth, at one point dreamed of getting his parents back together.
 * Percy is the only one that has been able to keep the River Lethe from erasing his memories, as Percy won't get wet in water because he is a son of Poseidon.
 * Percy Jackson is based on Rick Riordan's son, Haley, who has ADHD and Dyslexia.
 * Percy appears on the cover and in the story line of almost every novel in both the Percy Jackson and the Olympians series and The Heroes of Olympus series. As of now, the only novel on which he does not appear on the cover or story is The Lost Hero.
 * Percy often mishears what people say, and then proceeds to say what he thought they said out loud (which usually makes him look stupid or goofy).
 * Oddly, Percy seems to understand some Latin in The Son of Neptune after being at Camp Jupiter for a short time, while Jason cannot seem to understand Ancient Greek during The Lost Hero even though he has been at Camp Half-Blood for longer. The reason for this is probably because Chiron taught Percy Latin back at the beginning of The Lightning Thief. 
 * Hazel thinks that Percy and Jason Grace are similar in personality, as they both give off the aura of power and authority, but also a sadness that they have seen their destinies and are waiting for the day when they will face a monster that they cannot beat.
 * He's distantly related to his friend Frank Zhang due to his ancestor Periclymenus, something Percy tells him he is proud of.
 * Hera told Percy that the Heroes of Olympus must come together, at that time Percy was the only demigod to be said to be a Hero of Olympus by the Olympians themselves in The Heroes of Olympus.
 * In The Demigod Files, we see that Percy's worst fear is the camp in flames with his friends dead or it could be interpreted as losing those close to him.
 * Polybotes thinks if he harms Percy, Poseidon will become weakened due to his love of his son.
 * Percy is Poseidon's favorite son.
 * Percy has fought and defeated a total of one major god: Ares and one minor: Phobos. Clarisse La Rue ultimately defeated Deimos.
 * Percy is the only known bearer of the Curse of Achilles not to be killed in their weak spot and the only one known to lose it.
 * The River Styx is the only river Percy cannot control or breathe in.
 * Percy has two pets, Mrs. O'Leary and Blackjack.
 * Percy Jackson is one of only five characters whose birthday was revealed in the books. The other four are Thalia Grace, Hazel Levesque, Jason Grace and Annabeth Chase.
 * Percy has only led one quest but has been on multiple others.
 * Percy and Jason are both named after legendary Greek heroes: Perseus and Jason, the argonaut.
 * In the film adaptions Percy age within the First Great Prophecy changed from being sixteen to being twenty, meaning that Percy was sixteen in the first film and seventeen in Sea of Monsters. 
 * Percy's favorite brand of chewing gum is Trident.
 * Percy mentioned to Thalia Grace in 'The Titan's Curse that he likes listening to alternative rock and bands such as The White Stripes. He says that it's one of the "only CDs he owned that his mom liked".
 * As of The House of Hades, Percy and Annabeth and Nico are the only demigods known to have gone to Tartarus and survive the experience.