| 1 | Apollo | |
Zeus's son who was sent to Earth. Protagonist. |
| | Britney | Spears |
A famous singer. |
| | Zeus | |
The Olympian God of the Sky and Thunder. |
| | Cade | |
Mikey's friend. A guy who beats up Apollo on earth. |
| | Mikey | |
Cade's Friend. |
| 2 | Lester | Papadopoulos |
Apollo's Earth-identity. |
| | Ares | |
The God of War. |
| | Artemis | |
The God of Hunt. Apollo's sister. |
| | Cyrene | |
Apollo's ex-girlfriend. Deceased. |
| | Hera | |
Zeus's 2nd wife. Apollo's step-mother. |
| | Margaret | McCaffery |
Apollo's friend in Earth. Demeter's daughter. aka: Meg. |
| | Chiron | |
The Centaur. Apollo's friend. |
| | Percy | Jackson |
Apollo's Demigod friend. Poseidon's Son. |
| | | |
Camp Half Blood - The Demigod's Camp. |
| | Leto | |
Apollo's mother. |
| | Sally | Jackson |
Percy Jackson's mother. |
| | Gaea | |
The Mother of Earth. |
| | Octavian | |
One of Apollo's progeny. |
| | Annabeth | |
Percy's girlfriend. |
| | Paul | |
Percy's step-father. |
| 5 | Circe | |
Sally's witch rival. |
| | Poseidon | |
Percy's father. |
| | Laomedon | |
The King of Troy. |
| | Admetus | |
The King of Thessaly. |
| 8 | Hades | |
The God of the Underworld. |
| | Peaches | |
Meg's karpos. |
| 10 | Naomi | Solace |
An alt-country singer. Apollo's former wife. |
| | Will | Solace |
Apollo's son. A Demigod. |
| | Austin | |
Apollo's son. A Demigod. |
| | Kayla | |
Apollo's son. A Demigod. |
| | Athena | |
The God of Wisdom. |
| | Rachel | Dare |
Apollo's prophetess. The oracle. |
| | Nico | Di Angelo |
Son of Hades. |
| 11 | Julia | Feingold |
A Demigod. |
| | Alice | Miyazawa |
A Demigod. |
| | Dionysus | |
Apollo's old friend. The God of Wine. |
| | Cecil | Markowitz |
A Camper who disappeared from Hermes's Cabin. |
| | Ellis | Wakefield |
A Camper who disappeared from Hermes's Cabin. |
| | Miranda | Gardiner |
The Head of Demeter Cabin. |
| | Seymour | |
The Leopard Head. |
| 12 | Connor | Stoll |
The Camp Store Thief. |
| | Travis | Stoll |
Connor's brother. |
| | Sherman | Yang |
Ares's daughter. |
| | Leo | Valdez |
The Inventor of Valdezinator. |
| | Festus | |
Leo Valdez's bronze dragon. |
| | Hephaestus | |
The God of Fire. |
| | Harley | |
A Demigod. Son of Hephaestus. |
| | Daedalus | |
The skillful craftsman and artist. |
| | Nyssa | Barrera |
Harley's sister. |
| | Millard | |
Camp Half Blood's finest satyr. |
| | Herbert | |
Camp Half Blood's finest satyr. |
| | Grover | |
Percy's satyr friend. |
| | Demeter | |
Queen of the Grains. |
| 14 | Billie | Ng |
A Camper at Demeter Cabin. |
| 15 | Clarisse | La Rue |
Old head counselor of Ares. Daughter of Ares. |
| | Woodrow | |
A satyr. |
| | Valentina | Diaz |
Daughter of Aphrodite. |
| | Damien | White |
Son of Nemesis. |
| | Chiara | Benvenuti |
Tyche's pretty daughter. |
| | Holly | Victor |
Nike's daughter. |
| | Laurel | Victor |
Nike's daughter. |
| | Darren | Knowles |
A Canadian archery coach. |
| 16 | Juniper | |
Grover's girlfriend. |
| | Paolo | Montes |
Son of Hebe. |
| 18 | Python | |
The Monster who lives in the depths of the cavern. |
| 20 | | |
The Grove of Dodona - A stand of sacred Oaks. |
| 21 | Ella | |
The Harpy. |
| | Rhea | |
The Queen of Titans. |
| | Theodosius | |
The Emperor. |
| 22 | | |
Athena Pathernos - The Statue of the Goddess Athena. |
| | Malcolm | Pace |
Athena's son. |
| 23 | Pete | |
Geyser God. Camper in the forest of Camp Half Blood. |
| | Paulie | |
Pete's partner. |
| 24 | | |
Myrmekes - A Monter Ant. |
| | Daphne | |
Apollo's former lover. |
| | Eros | |
Son of Aphrodite. |
| 27 | Emperor | Nero |
Apollo's enemy. Meg's step-father. |
| | | |
Tartarus - The Prisons of the Titans. |
| 29 | Garius | |
Emperor Nero's bodyguard. |
| | Vincius | |
Emperor Nero's bodyguard. |
| | Caesar | Augustus |
Emperor Nero's son. |
| 30 | Alexander | Fleming |
A physician. |
| 31 | Ouranos | |
Gaea's husband. |
| | Kronos | |
The Cannibal King. Rhea's husband. |
