Apollo

Apollo is the god of the sun, prophecy, medicine, poetry, and music. He is the twin brother of Artemis.

History
Apollo is the son of Zeus and the Titaness Leto. He is also the Twin brother of Artemis. When Leto was pregnant, Hera was furious and made it so Leto could not have her children in peace. She was chased by the Serpent Python until she stopped on a newly created island Delos.

When Apollo grew up he hunted Python and killed him for his mother's sufffering.

The series
Apollo is first intoduced in The Titan's Curse. Apollo's sister Artemis decides to hunt a powerful monster, one that has the power to bring down the gods and Olympus. While she goes alone to do so, Zoë is placed in charge of the Hunters and they ask Apollo to drive them. He arrives, and Artemis and he have a brief arguement over his flirting with her Hunters, and then she leaves.

Apollo gives Percy, Thalia, Nico, and the Hunters a ride, with Thalia at the wheel. Even he becomes nervous with Thalia's driving, and is relieved that all the demigods and Hunters survived the ride.

The combination results in a gut-retching experience for the group. But at last, they arrive at Camp Half-Blood, and Apollo sees them off.

After Artemis is kidnapped, Percy, Thalia, Zoë, Bianca, and Grover leave to rescue her and Annabeth. Apollo is worried about his sister, and when he tries to use his supernatural sight to find her, he discovers she has been clouded from him. So he breaks the Ancient Laws, and helps the questors when they get on a train headed west. Apollo tells Percy a haiku, which reveals himself to Percy (as Percy has never met anyone who could tell such a horrible haiku other than Apollo). He warns Percy not to let anyone know he spoke to him, calling himself 'Fred' and advises him to seek out Nereus, the Old Man of the Sea.

Later, Apollo votes for Percy not to be killed, and and gives him a thumbs-up from his throne. He was listening to his iPod at the time, so it is unknown how much of the debate he actually heard.

In The Last Olympian, Apollo joins forces with the other gods of Olympia against Typhon. When Poseidon defeats Typhon, Apollo joins the rest of the gods on Olympus, and is there when Percy, Annabeth, and Grover are all thanked for their efforts.

Personality
Apollo has been obsessed with Haiku ever since he visited Japan and appears to obsess over other kinds of poems mattering on where he goes. He is horrible at them, but he still tries. (In The Titan's Curse, Zoë Nightshade briefly mentions that after Apollo visited Ireland, he obsesses over limericks.) He loves his 'little' sister Artemis, even though they often clash, his boyant personality against her grim and serious one.

The sun god drives around in his Chariot, as hot as the sun. He can make the Chariot look however he wants, but he likes to keep it in sports car mode. Apollo stated that his chariot is made from mortal beliefs of the sun. As long as they believe that the sun rises and falls, that its hot, and comes for half the day, it shall.

Apollo is a master in archery and so are his demigod children at Camp Half-Blood. One of these demigods of his is Lee Fletcher who dies fighting in The Battle of the Labyrinth. Lee Fletcher is also the head of the Apollo Cabin. Then Micheal Yew who most likely dies in The Last Olympian is the new head counseler. It is said that during capture the flag that the Apollo cabin has one of the biggest cabins. Apollo is a major flirt, as he often flirts with Artemis' hunters, even though he keeps being told not to.

Appearance
Apollo normally appears as a handsome teenage boy, around seventeen or eighteen, sandy hair, a bright happy smile, and outdoorsy good looks. This form reminded Percy of Luke when he first met him though much less troubled, more easygoing, and without the scar on his face. But he also appeared as a middle-aged man called Fred during The Titan's Curse.

Powers
Apollo is the god of the sun, having taken over after Helios. He is also the god of prophecy, medicine, poetry, and music, which in turn means he is the god that controls the Oracle at Delphi, and oversees the ceremony in which Rachel receives the Oracle's spirit. He drives the sun, which he has transformed into a red convertible Maserati Spyder. He has arrows that burn like the sun.

Relationship with Artemis
Apollo is fond of calling Artemis his 'little sister' even though they are twins. This exasperates her. He doesn't take her seriously, and she in turn, thinks he is immature and childish. However rocky their relationship is, they love each other very much, and Apollo even broke the Ancient Law and gave Percy information that would help him find Artemis when she was kidnapped, saying 'no one messes with my little sister".

Film
In the upcoming film, The Lightning Thief, Apollo will be played by Dimitri Lekkos.