Percy Jackson
Annabeth Chase
Grover Underwood
Luke Castellan
Clarisse La Rue
Tyson
Sally Jackson
Mr. Brunner / Chiron / Chiron
Mr. D / Dionysus
Kronos / Voice in Dream (voice)
Chris / Theo
Alison Simms
Gabe Ugliano
Young Percy Jackson
Sarah
Ares
Tantalus
Skull Eater
Dean
Thalia Grace
Mrs. Dodds / Alecto
Poseidon
Hermes / Hermes (uncredited)
Chris Rodriguez
