Meg McCaffrey is the deuteragonist of the Trials of Apollo book series by Rick Riordan.
She is the daughter of Demeter and the "Master" of Apollo after he was sent down to earth.
Minor Characters: Travis Stoll • Connor Stoll • Mrs. O'Leary • Silena Beauregard • Charles Beckendorf • Sally Jackson • Paul Blofis • Blackjack • Zoë Nightshade • Bianca di Angelo • Juniper • Michael Yew • Ethan Nakamura • Katie Gardner • Miranda Gardiner • Daedalus 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
Secondary Characters: Sally Jackson • Chiron • Luke Castellan • Clarisse La Rue • Chris Rodriguez Minor Characters: Nancy Bobofit • Gabe Ugliano • Eddie • Oracle of Delphi • Thalia Grace • Ferdinand Underwood • Nereid • Fates • Augustus • Nico di Angelo • Bianca di Angelo • Charon Greek Gods: Zeus • Poseidon • Hades • Dionysus • Hermes • Ares • Athena • Hephaestus Titans: Kronos Monsters: Alecto • Minotaur • Medusa • Echidna • Chimera • Procrustes • Cerberus