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Gods cannot cross each other’s territories except by invitation. That is another ancient rule. Heroes, on the other hand, have certain privileges. They can go anywhere, challenge anyone, as long as they’re bold enough and strong enough to do it. No god can be held responsible for a hero’s actions. Why do you think the gods always operate through humans?

–Chiron, to Percy Jackson, in The Lightning Thief.

Chiron is the activities director at Camp Half-Blood. He is an immortal centaur, son of Kronos and the Oceanid Philyra, and a famed trainer of heroes from Greek mythology, including Jason and Achilles. In The Lightning Thief, Chiron went under the alias "Mr. Brunner" when he posed as a teacher at Yancy Academy.



Chiron was sired by the Titan King Kronos, who was in the form of a horse at the time. His mother, Philyra, abandoned him on Mount Pelion at birth because of her disgust at his appearance.

Start of Training

Later the god Apollo took care of the child and taught him all his skills. In return, Apollo sent Chiron demigods for him to teach all that he had learned. Chiron is not a true centaur, as centaurs are notorious for being overly indulgent drinkers and carousers, given to violence when intoxicated, wild, lusty, and generally uncultured delinquents. Chiron, by contrast, was very intelligent, civilized, and kind. Also, true centaurs are born of sun and cloud (Ixion and Nephele) and are not immortal. However, Chiron gained his immortality from the gods. During this time, Chiron lived atop Mount Pelion in the northern region of Thessaly.

Death and Resurrection

After accidentally getting hit by a poisonous arrow, Chiron felt a lot of pain and later gave up his immortality. Whether this account was false or he was resurrected, Chiron lived to Percy Jackson's time. This is because he was given immortality by Zeus so he will stay alive so long as he is needed to teach heroes.

Students of Chiron

Throughout the Greek age, Chiron was the only immortal centaur and was known for his exceptional wisdom and also known as the teacher of heroes. Among his known students are:

  • Achilles - Chiron raised him on behalf of Thetis and Peleus.
  • Actaeon - The son of Aristaeus. He was bred to be a hunter. Artemis turned him into a deer after he accidentally stumbled upon her bathing. After he in the form of a deer was accidentally killed by his own dogs, Chiron fastened his image to soothe the dogs.
  • Ajax the Greater - The son of Telamon and the elder brother of Teucer, he was physically the strongest of the Achaeans during the Trojan War.
  • Aristaeus - The father of Actaeon. According to some sources, Chiron taught him the art of healing and prophecy while other accounts state that the Muses were responsible for these teachings.
  • Asclepius - A son of Apollo, who gave him to Chiron to raise. Chiron instructed him in the art of healing and medicine.
  • Atalanta - A famous huntress who participated in the hunt for the Calydonian Boar.
  • Caeneus - A Lapith who fought during the Centauromachy.
  • Hercules - Some Greek myths state that Hercules was trained by Chiron.
  • Hippomenes - A son of Poseidon and husband of Atalanta the Huntress. He was said to be trained by Chiron.
  • Jason - The leader of the Argonauts. Jason was given to Chiron by his father Aeson to raise.
  • Oileus - A member of the Argonauts.
  • Patroclus - His father left him in the care of Chiron to study alongside Achilles, his best friend and likely lover.
  • Peleus - The father of Achilles who was previously saved from the centaurs by Chiron who returned Peleus' sword to him.
  • Phoenix - One of the Myrmidons who served as one of Achilles' five commanders during the Trojan War. Chiron was the one who restored his eyesight.
  • Telamon - Father of Teucer and Ajax the Greater, he was the elder brother of Peleus, and sailed with Jason as one of the Argonauts.
  • Percy Jackson - Chiron takes special interest in Percy, even going undercover as Mr. Brunner in his school.

Percy Jackson and the Olympians

The Lightning Thief

Chiron revealing his true form in the Graphic Novel.

Chiron posed as Percy Jackson's Latin teacher, Mr. Brunner, as he was called by Grover Underwood the satyr in charge of Percy. He used an enchanted wheelchair and fake legs to hide his backside. In the museum, he saves Percy from being killed by the Fury Alecto by throwing him Riptide, a sword disguised as a ballpoint pen. He later pretends it didn't happen, with the hopes that Percy won't notice. However, Percy isn't very convinced.

Percy looks up to him and is very upset when he thinks 'Mr. Brunner' is disappointed in him. Later, it is revealed when Percy eavesdrops on a conversation between his teacher and Grover that 'Mr. Brunner' is worried about Percy's safety and whether he is prepared or not, and does not want to get him involved yet. That, however, proves to be impossible. Chiron meets Percy again on the balcony of the Big House when Percy wakes up after he was attacked by the Minotaur. Chiron is worried about Percy and cares for him. He tries to train Percy as much as possible, and hopes that Percy is the son of a minor god (for Percy's own safety), though he suspects that his father is indeed Poseidon due to a prophecy he'd received some time before. When he is forced to send Percy on his quest, he was disappointed on not being able to train him more as he did with other heroes before Percy. After Percy tells Chiron of Luke's betrayal, Chiron departs to Olympus straight away to warn the gods.

Annabeth, a camper Chiron trained and raised for almost ten years.

The Sea of Monsters

Chiron is blamed for poisoning Thalia's tree and the camp's borders (since he is a son of Kronos), and replaced by Tantalus who took over the position of Activities Director. Percy and Annabeth (Annabeth especially) are furious that he is untrusted, and they do not know why Chiron is suspected, as they don't know about Kronos being his father. Before he leaves, he meets Tyson, Percy's half-brother and Tyson takes a liking to him, calling him "pony" which Chiron finds offensive. Annabeth cries when Chiron leaves as she believed him as a father, and Percy feels like crying, though he won't let himself.

Percy is desperate to bring back Chiron and get rid of the evil, twisted Tantalus, and succeeds, by starting an Iris Message behind Luke, and getting Luke to admit he had poisoned Thalia's tree. Tantalus is then banished back to the Underworld (just as he managed to grab a cheeseburger) and Chiron and the rest of his species save Percy, Annabeth, and Tyson from Luke and his goons.

Later, Chiron comforts Percy in his mission and reveals his parentage when Percy says he is still confused about why the Council would suspect him. After Thalia is expelled from the tree, Chiron is afraid for her and Percy, because now there were two possible pawns for his father, Kronos to use and manipulate.

Although he wasn't training heroes in his break, it seems to be explained as he was still needed and it is known that Chiron's immortality will live within him as long as he was needed, even though he wasn't training.

The Titan's Curse

Chiron tries to comfort Percy after Annabeth is kidnapped though he himself was a very worried centuar. He later arranges a friendly Capture the Flag game between the Campers and the Hunters. Much to the campers and Chiron's dismay, the Hunters emerge victorious for the fifty-sixth time in a row as Chiron later announces. After Thalia and Percy get into a fight, Chiron breaks them up, and is amazed by seeing the Oracle coming out of the Big House and delivering a prophecy to Zoë Nightshade.

Later, when Percy is excluded from the rescue group, Chiron tries to comfort him, but Percy doesn't want to be comforted which makes things worse. He is dismayed to hear Chiron state that he wouldn't choose Percy or Thalia as his choice for this quest since he believes that the two of them together would be very dangerous as Percy is powerful but is not sure of himself and Thalia is powerful and is too sure of herself. Chiron deeply cares about Annabeth, they are even closer to each other than Annabeth is to her actual father, and he is sure that the group will find her.

Later, after Percy realizes that Nico is the son of Hades, he hides that from Chiron, afraid of what he will do. When Percy asks about mortals that see through the Mistakes in the Series (CHB), Chiron informs him that some mortals are special, and can do that, including Percy's mother Sally. Percy asked because of his encounter with Rachel. When Clarisse finally arrives at the end of the book, she wants to talk to Chiron immediately.

The Battle of the Labyrinth

Chiron is slightly distrustful of Quintus, and he talks about it with Percy. He later talks about the Labyrinth with Percy and Annabeth, and the entrance that is within the boundaries of the Camp and assigns the quest to Annabeth. Annabeth is very nervous. Clarisse had been first asked to go back, but hotly refused, saying 'she would never go back to that place again'.

Chiron later speaks battle statistics with the Campers and says that he knows where Percy was when he was missing (Calypso's Island). He was very heart-broken when Percy had been missing (and believed to be dead) and was relieved to see him again. Chiron is somewhat surprised to see Nico again and later admits to Percy that he knows that his father is Hades. He fights in the battle against Luke's forces, and they win, with the help of Grover. Chiron was unsuccessful in shooting down Kampê. After the battle, Chiron was injured and required medical attention.

The Last Olympian

Due to Poseidon's request, Chiron finally reveals the entire Great Prophecy to Percy. Chiron tells him of what happened with Typhon and is very worried for the fate of Olympus. He organizes the teams for battle, though Chiron fails at convincing Clarisse to fight with them. He then sends out to see if the centaurs will fight for them. The centaurs agree, and the "Party Ponies" help defend Manhattan. He later fights in the battle against his father Kronos, and there is a confrontation between the two, and Chiron was called 'that weakling son of mine' by Kronos. The Titan King throws Chiron against a wall and covered with rocks, and dug out by Mrs. O'Leary. He is injured but manages to make it to camp, where Rachel receives the Spirit of Delphi. He is in the audience that hears the next Great Prophecy and comforts Percy, Annabeth, and Rachel that it may be decades before the fulfillment of that prophecy, although the prophecy is revealed to be happening a few months later in The Lost Hero.

The Heroes of Olympus

The Lost Hero

Chiron first appears when he meets Jason and says to him in horror: " should be dead." He then "invites" Jason inside the big house. He is still the camp's activities director; but Mr. D is barely mentioned in this book, since Zeus has brought the gods back to Olympus and closed it off. Chiron is unable to tell anybody about the existence of Roman demigods and Camp Jupiter, which infuriates Annabeth (he never withheld information from her before), but he does admit that the Second Great Prophecy could predict something worse than the Second Titanomachy. When Leo returns from his quest and reveals Bunker 9, Chiron finally tells of its' history with the Demigod Civil War. He also explains that there was a possibility of Bunker 9 rekindling the same spark that caused the Civil War between Romans and Greeks and that was why even in the Second Titan War, it was never used until Leo had discovered it. Later at the council meeting, he discusses with the other council leaders the events of the quest, the building of the Argo II, and Annabeth and Jason discuss Percy's possible location and condition.

The Son of Neptune

Percy mentions Chiron, hoping that he'll forgive him for attacking Centaurs who were invading Camp Jupiter. Percy feels that Chiron would forgive him because these Centaurs weren't like the Party Ponies, these Centaurs were raised to fight the Romans as they were soldiers of Gaea.

The Mark of Athena

Percy and Annabeth contact Chiron in a dream to warn him of the Twelfth Legion Fulminata's attack on the Greek camp.

The House of Hades

Leo and Calypso see Chiron is a vision, depicting the centaur dressed for war, trotting up and down the ranks of Greek demigods, his plumed helmet gleaming, his legs decked in bronze greaves. His usual friendly smile is gone, replaced with a look of grim determination.

The Blood of Olympus

Chiron is seen with the Greek demigods, Cyclopses, Satyrs, and Nymphs defending the camp. After the battle with Gaea he has a funeral for the fallen campers- both Greek and Roman, and he has Nico di Angelo lead the ceremony. He is later seen at the Campfire complementing the two groups of demigods on their newly formed alliance and friendship. He also later has several long conversations with Reyna and Frank, the Praetors of Camp Jupiter, discussing the now established alliance between both camps.

The Trials of Apollo

The Hidden Oracle

Six months after the defeat of Gaea, Chiron greets the former god Apollo and the latter's demigod master Meg McCaffrey at the Big House. There, they discuss the former god's current condition and the missing campers. At dinner, Chiron discusses the upcoming three-legged death race with the campers, and he bears witness to Meg getting claimed by her mother Demeter.

After the race, Chiron forms a search party for Apollo, Meg, Austin, and Kayla.

When Rachel arrives at camp, she, Meg, and Chiron talk with Apollo about Triumvirate Holdings and how they have influenced events to suit themselves. They have been waiting in the shadows for centuries and plotting.

When the Colossus Neronis automaton attacks the camp, Chiron fires numerous arrows at him, though that had little to no effect. When Percy arrives at camp he aids the centaur, while Apollo shoots a plague arrow at the automation, finally bringing it down.

Right after the Colossus is brought down, Leo, Calypso, and Festus finally return to camp, and Chiron is quick to welcome the son of Hephaestus back, though he kicks Leo in the gut with his centaur hoof, and tells him never to do any such thing again.

The Tower of Nero

Six months after Apollo first arrives at camp as a human, he is away in a meeting discussing other end of the world matters with a cat and a severed head, as stated by Dionysus. When Chiron returns, his meeting is referred to as a joint task force with other pantheons due to a threat of some sort that Chiron doesn't want to discuss.

After he returns he leads the campers into battle at Nero's Tower. After the emperor is defeated, he wishes Apollo luck as the mortal god goes to fight Python.

Two weeks later he welcomes Apollo back to camp after his godhood is restored.


As the activities director of Camp Half-Blood, Chiron takes great pride in his students and acts as a father figure to those that have problems with their own family (like Annabeth). He is remarkably patient with all of the campers, even those that can be exceptionally hard to deal with, like Clarisse La Rue and Meg McCaffrey.

Unlike all other centaurs, Chiron is exceptionally intelligent, wise, civilized, and kind. As seen in The Lost Hero, Chiron is also honorable and just, and does not talk about the Romans, Camp Jupiter and the Demigod Civil War until the others find out, since he values the oath that he and Lupa made. Most notably, Chiron does not even tell Annabeth, whom he never withheld information from previously, not even the Great Prophecy.

Chiron will also go out of his way or put himself in danger to protect the campers even if he knows that he may not be able to help them. The greatest example of this was when Chiron directly attacked Kronos himself, even though he knew that he stood no chance against his father.

Chiron also has deep faith in Percy, even before Percy knew he was a demigod in The Lightning Thief. During his time as Percy's teacher at Yancy Academy, he would constantly push Percy to excel in his studies and pushed him to not only pass the class, but do so with a high grade. Even though Percy didn't manage to pass with an A, he still managed to get a decent grade. Chiron later tells Jason in The Lost Hero that he is very proud of the person that Percy had become.

While he is calm and patient he occasionally becomes angry, during which Percy notes that Chiron's tone becomes "steely calm."

Despite all of this, he does have a tendency to show favor, treating Annabeth like his own daughter and teaching Thalia how to control the Mist despite never attempting anything like this with Percy or any other student. This is quite opposed to Percy whom he cares for greatly but still gives quite a bit of distance to.


Chiron is described as a middle-aged man from the waist up, with thinning brown hair, bushy eyebrows, intense brown eyes and a scruffy beard grown longer in the winter. His lower half is that of a white stallion.


As an immortal son of Kronos as well as the legendary Trainer of Heroes, Chiron is far more powerful, intelligent, and civilized than other centaurs.

  • Archery: As the bow and arrow are his favorite weapons, Chiron is an incredibly skillful archer. In The Hidden Oracle, Apollo himself praised his archery skills.
  • Swordsmanship: As shown in The Last Olympian, Chiron was an outstanding swordsman, even though he was known for hating to use a sword, being able to fight equally with his father, Kronos, while he was weakened due to being in Luke's body and Kronos only won because he blasted Chiron against a wall with his powers, not through skill. Even Percy was impressed by Chiron's skill, saying that he couldn't have done any better than Chiron against Kronos.
  • Bending Distance: Like any centaur, Chiron was able to travel at great speeds - "bending distance" as he rides.
  • Vitakinesis: As shown in The Lightning Thief, Chiron was a skillful healer, being able to effectively cure Percy of a pit scorpion bite.
  • Multilingualism: Chiron is shown to speak multiple languages. As shown in The Lightning Thief, Chiron was fluent in Latin, and was therefore able to pose as a Latin teacher at Yancy Academy. He can presumably speak Ancient Greek, as it his native tongue. While not shown it can be assumed he can speak other languages from countries where the gods used to reside such as such as German and Spanish.
  • Mist Control: Chiron can control the Mist doing so to alter the memories of multiple students on a field trip to the Metropolitan Museum of Art and teaching Thalia Grace and possibly Percy Jackson to do so.
  • Mystiokinesis (possibly): Chiron may have some mystical abilities, seeing as he can summon weapons and shields during the Capture the Flag.

Percy Jackson (Film Series)

Chiron as he appears in the first film (left) and the second film (right).

Percy Jackson and the Olympians: The Lightning Thief

In the film, Chiron is played by Pierce Brosnan. He is portrayed as being a centaur with a dark brown lower body pelt, where as in the books he is said to be a white stallion instead.

Percy Jackson: Sea of Monsters

In the film adaptation of The Sea of Monsters, Anthony Head replaced Pierce Brosnan in the role of Chiron.


  • Although he is portrayed as a white stallion from the waist down in the Percy Jackson and the Olympians series, in the film, graphic novel and video game, he is shown to have a dark brown lower body pelt instead.
  • He is known to like 50's music as shown in The Sea of Monsters, and he is also a fan of 40's music in The Lost Hero, but it is unknown if it is in fact 1940's music he is playing. He also likes Frank Sinatra and Dean Martin. It is unknown if he likes other members of the Rat Pack or just the two, who are the most famous members.
  • He is technically the first monster to appear in the series, although he used his wheelchair to disguise his full form.
  • Chiron can speak Latin fluently.
  • He is a brother of the Big Three and the other Elder Olympians.
  • Chiron is the only child of Kronos who isn't an Olympian.
  • In the myths he was placed in the sky as the constellation Centaurus.
  • It is possible that Chiron might have killed the bear monster Oreius but it is unknown who shot the fatal arrow.
  • Curiously Chiron has a wife and daughters, thought they not are mentioned in the series.
  • While this is never explicitly mentioned by either of them, Chiron is Percy's half-uncle; Chiron is a son of Kronos and Kronos is Percy's grandfather.
  • Chiron is aware of other pantheons and apparently has friends in them. This is first suggested in Demigods & Magicians and confirmed in The Tower of Nero when he meets with Mimir and Bast to discuss a threat of some sort.
Percy Jackson and the Olympians
Core Series: The Lightning Thief | The Sea of Monsters | The Titan's Curse | The Battle of the Labyrinth | The Last Olympian
Main Characters: Percy Jackson | Grover Underwood | Annabeth Chase | Tyson | Clarisse La Rue | Thalia Grace | Nico di Angelo | Chiron | Luke Castellan | Rachel Elizabeth Dare
Secondary Characters: Sally Jackson | Travis Stoll | Connor Stoll | Mrs. O'Leary | Silena Beauregard | Charles Beckendorf | Paul Blofis | Blackjack | Zoë Nightshade | Bianca di Angelo | Juniper | Ethan Nakamura
Minor Characters: Gabe Ugliano | Tantalus | Frederick Chase | Michael Yew | May Castellan | Austin Lake | Kayla Knowles | Maria di Angelo | Will Solace
Olympian Gods: Zeus | Hera | Poseidon | Demeter | Ares | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus | Hades | Hestia
Minor Gods: Amphitrite | Ariadne | Hecate | Iris | Janus | Morpheus | Nemesis | Pan | Persephone | Triton
Titans: Kronos | Atlas | Calypso | Iapetus | Krios | Hyperion | Oceanus | Prometheus
Mythical Creatures: Minotaur | Centaur | Furies | Satyr | Cyclops | Manticore | Ophiotaurus | Nemean Lion | Empousa
Related Content: Rick Riordan | The Lightning Thief (film) | Sea of Monsters (film) | The Demigod Files | Demigods and Monsters | The Ultimate Guide | The Heroes of Olympus | The Trials of Apollo | Percy Jackson Demigod Collection | Disney+ Series
The Heroes of Olympus
Core Series: The Lost Hero | The Son of Neptune | The Mark of Athena | The House of Hades | The Blood of Olympus
Main Characters: Jason Grace | Piper McLean | Leo Valdez | Percy Jackson | Frank Zhang | Hazel Levesque | Annabeth Chase | Reyna Ramírez-Arellano | Nico di Angelo | Gleeson Hedge
Secondary Characters: Hylla Ramírez-Arellano | Dakota | Tyson | Ella | Octavian | Halcyon Green | Dr. Howard Claymore | Alabaster C. Torrington | Lamia | Iapetus/Bob
Minor Characters: Rachel Elizabeth Dare | Grover Underwood | Thalia Grace | Fleecy | Mrs. O'Leary | Kinzie | Arion | Calypso | Lou Ellen Blackstone | Chiron | Will Solace | Tristan McLean | Don | Julia | Jacob | Michael Varus | Burly Black | Medea | Midas | Lityerses | Phineas | Otrera | Echo | Narcissus | Sciron | Pasiphaë
Olympian Gods: Zeus | Hera | Poseidon | Hades | Ares | Demeter | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus
Minor Gods: Achelous | Aeolus | Asclepius | Boreas | Eurus | Hecate | Iris | Hypnos | Keto | Khione | Kymopoleia | Mithras | Nemesis | Nike | Notus | Phorcys | Serapis | Thanatos | Triptolemus | Zephyros
Roman Gods: Jupiter | Juno | Neptune | Pluto | Mars | Minerva | Ceres | Lupa | Bellona | Fortuna | Janus | Terminus | Vulcan | Mercury | Apollo (Roman) | Diana | Venus | Bacchus | Pomona | Aquilon | Hercules | Cupid | Auster | Favonius | Letus | Victoria
Giants: Enceladus | Porphyrion | Alcyoneus | Polybotes | Ephialtes | Otis | Damasen | Clytius | Mimas | Orion | Hippolytos | Thoon | Periboia
Undead: Gray | Zombie
Primordial Gods: Gaea | Tartarus | Ourae | Nyx | Chaos | Ouranos | Akhlys | Hemera | Elpis | Spes
Monsters and Magical Creatures: Cynocephali | Gorgon | Gryphon | Harpy | Basilisk | Lycanthrope | Gegeines | Cyclops | Katobleps | Unicorn | Giant Eagle | Ichthyocentaur | Satyr/Faun | Storm Spirit | Laistrygonian Giant | Lares
Related Content: Rick Riordan | Haley Riordan | Percy Jackson and the Olympians | Percy Jackson and the Olympians: The Ultimate Guide | The Demigod Files | The Demigod Diaries | The Son of Sobek | The Singer of Apollo | The Staff of Serapis | Percy Jackson's Greek Gods | Percy Jackson's Greek Heroes | The Crown of Ptolemy | Demigods & Magicians | Demigods of Olympus | Percy Jackson Demigod Collection
The Trials of Apollo
Core Series: The Hidden Oracle | The Dark Prophecy | The Burning Maze | The Tyrant's Tomb | The Tower of Nero
Main Characters: Apollo/Lester Papadopolous | Meg McCaffrey | Percy Jackson | Peaches | Leo Valdez | Calypso | Grover Underwood | Piper McLean | Jason Grace | Reyna Ramírez-Arellano | Frank Zhang | Hazel Levesque | Nico di Angelo | Will Solace | Rachel Elizabeth Dare
Secondary Characters: Chiron | Austin Lake | Kayla Knowles | Hemithea | Josephine | Georgina | Lityerses | Trophonius | Gleeson Hedge | Mellie | Chuck Hedge | Medea | Herophile | Crest | Lavinia Asimov | Don | Tyson | Ella | Tarquin | Luguselwa | Claudia | Janice | Blaise
Minor Characters: Sally Jackson | Thalia Grace | Mrs. O'Leary | Festus | Cade | Mikey | Harley | Connor Stoll | Miranda Gardiner | Cecil Markowitz | Ellis Wakefield | Sherman Yang | Damien White | Malcolm Pace | Paolo Montes | Valentina Diaz | Germani | Agamethus | Olujime | Phillip McCaffrey | Hunter Kowalski | Sssssarah | Prickly Pear | Aloe Vera | Joshua | Naevius Sutorius Macro | Incitatus | Tristan McLean | Bombilo | Aurum | Argentum | Julia | Jacob | Poison Oak | Screech-Bling | Annabeth Chase | Elon | Mamurius Veturius | Mimi
Olympian Gods (Greek & Roman): Zeus/Jupiter | Hera/Juno | Poseidon/Neptune | Demeter/Ceres | Ares/Mars | Athena/Minerva | Apollo/Apollo (Roman) | Artemis/Diana | Hephaestus/Vulcan | Aphrodite/Venus | Hermes/Mercury | Dionysus/Bacchus | Hades/Pluto
Minor Gods: Nero | Commodus | Caligula | Iris | Britomartis | Styx | Terminus | Lupa | Terpsichore | Harpocrates | Cardea
Titans: Rhea | Leto | Mnemosyne | Helios
Monsters and Magical Creatures: Python | Nosoi | Karpoi | Palikos | Myrmekes | Colossus Neronis | Blemmyae | Gryphon | Carthaginian Serpent | Scythian Dracaena | Cynocephali | Centaur | Cyclops | Yale | Satyr/Faun | Strix | Dryad | Dragon | Pandai | Eurynomos | Skeleton Warriors | Vrykolakai | Raven | Khromandae | Amphisbaena | Troglodyte | Tauri Sylvestres
Related Content: Rick Riordan | Percy Jackson and the Olympians | The Heroes of Olympus | Demigods & Magicians | Camp Half-Blood Confidential | Camp Jupiter Classified: A Probatio's Journal | Percy Jackson Demigod Collection | Un Natale Mezzosangue
Species: Amphisbaena | Apollo's Cattle | Blemmyae | Basilisk | Carnivorous Sheep | Centaur | Cyclops | Cynocephali | Dragon | Drakon | Empousa | Eurynomos | Feather-Shooting Bird | Fire-Breathing Horse | Flesh-Eating Horse | Gegeines | Geminus | Giant Eagle | Giant Scorpion | Giant Snake | Ghoul | Gorgon | Gryphon | Harpy | Hellhound | Hippalektryon | Hippocampus | Hydra | Hyperborean Giant | Ichthyocentaur | Karpoi | Katobleps | Keres | Khromandae | Laistrygonian Giant | Leucrotae | Lycanthrope | Makhai | Merperson | Myrmekes | Nikai | Pandai | Pegasus | Pit Scorpion | Satyr | Scythian Dracaena | Sea Serpent | Siren | Strix | Stymphalian Birds | Tauri Sylvestres | Telekhine | Troglodyte | Unicorn | Vrykolakai | Yale
Friendly Monsters: Argus | Blackjack | Briares | Bombilo | Chiron | Cottus | Don | Ella | Festus | Gleeson Hedge | Gray | Grover Underwood | Guido | Gyges | Lysas | Mrs. O'Leary | Ophiotaurus | Peaches | Peleus | Porkpie | Rainbow | Scipio | Tyson | Tempest | Sssssarah
Enemy Monsters: Antaeus | Agrius and Oreius | Arachne | Cacus | Carthaginian Serpent | Charybdis and Scylla | Chimera | Chrysaor | Clazmonian Sow | Colchis Bulls | Echidna | Euryale | Geryon | Kampê | Karkinos | Kekrops | Lamia | Manticore | Medusa | Minotaur | Nemean Lion | Polyphemus | Python | Skolopendra | Sphinx | Stheno | Sun Dragons | Typhon | Trojan Sea Monster
Neutral Monsters: Cerberus | Erymanthian Boar | Gray Sisters | Furies | Ladon | Orthus | Sybaris