Percy Jackson
Grover Underwood
Annabeth Chase
Luke Castellan
Mr. Brunner / Chiron
Zeus
Hades
Persephone
Athena
Sally Jackson
Poseidon
Gabe Ugliano
Medusa
Ferryman
Lotus Land Bellhop
Aphrodite Girl
Lotus Land Waitress
Hera
Mrs. Dodds / Fury
Lotus Land Dancer
Hysterical Woman
Seventies Kid - Casino
Aphrodite
Apollo
Artemis
Demeter
Hephaestus
Hermes
Dionysus
Grover Girl
Cute Girl
Nymph Warrior
Pretty Girl #1
Pretty Girl #2
WGHP News Anchor - Video
Field News Reporter
Percy's Classmate
Poker Buddy
Old Fisherman
Maid at Motel
Smart Ass Kid
Museum Tour Guide
Museum Employee
Parthenon Janitor
50's Tough
Son of Ares
College Buddy
Cute Girlfriend
Boyfriend
Cook
Waitress
Waitress with Cleaver
Screaming Diner
Stuffy Croupier
Warrior
Bubble Man (uncredited)
Ares (uncredited)
Park Guest (uncredited)