| Hercules: | Tate Donovan |
| Young Hercules: | Josh Keaton |
| Young Hercules (Singing): | Roger Bart |
| Phil: | Danny DeVito |
| Hades: | James Woods |
| Megara: | Susan Egan |
| Pain: | Bobcat Goldthwait |
| Panic: | Matt Frewer |
| Zeus: | Rip Torn |
| Hera: | Samantha Eggar |
| Alcmene: | Barbara Barrie |
| Amphitryon: | Hal Holbrook |
| Hermes: | Paul Shaffer |
| The Fates: | Amanda Plummer |
| Carole Shelley | |
| Paddi Edwards | |
| Narrator: | Charlton Heston |
| Cyclops: | Patrick Pinney |
| Calliope: | Lillias White |
| Clio: | Vaneese Thomas |
| Melpomene: | Cheryl Freeman |
| Terpsichore: | La Chanze |
| Thalia: | Roz Ryan |
| Burnt Man: | Corey Burton |
| Nessus: | Jim Cummings |
| Apollo: | Keith David |
| The Earthquake Lady: | Mary Kay Bergman |
| Heavyset Woman: | Kathleen Freeman |
| Little Boys: | Bug Hall |
| Kellen Hathaway | |
| Demetrius: | Wayne Knight |
| Itchicles: | Aaron Michael Metchik |
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