Characters in The Hidden Oracle

Apollo / Lester Papadopoulos

Fallen sun god trapped in a mortal teen body, vain and self-pitying but slowly learning humility and empathy.

Also in The Dark Prophecy, The Burning Maze, The Tyrant's Tomb, The Tower of Nero

Meg McCaffrey

Scrappy young demigod daughter of Demeter who becomes Apollo's master; her loyalty is torn by a hidden connection to the enemy.

Also in The Dark Prophecy, The Burning Maze, The Tyrant's Tomb, The Tower of Nero

Percy Jackson

Veteran demigod who helps escort Apollo and Meg to Camp Half-Blood.

Also in The Lightning Thief, The Sea of Monsters, Camp Half-Blood Confidential, The Titan's Curse, The Battle of the Labyrinth, The Last Olympian, The Son of Neptune, The Mark of Athena, House of Hades, The Blood of Olympus

Nico di Angelo

Son of Hades and camper at Camp Half-Blood.

Also in The Titan's Curse, The Battle of the Labyrinth, The Last Olympian, The Tower of Nero, The Blood of Olympus

Will Solace

Son of Apollo and camp healer.

Also in The Last Olympian, The Tower of Nero, The Lost Hero, The Blood of Olympus

Rachel Elizabeth Dare

Mortal Oracle of Delphi whose prophetic powers have gone silent.

Also in The Battle of the Labyrinth, The Last Olympian, The Tower of Nero, The Lost Hero, The Blood of Olympus

Chiron

Centaur trainer of heroes who advises Apollo at camp.

Also in The Lightning Thief, The Sea of Monsters, Camp Half-Blood Confidential, The Titan's Curse, Wrath of the Triple Goddess

Apollo

Also in Camp Half-Blood Confidential