Ashley JohnsonPeter Shepherd (voice) William SandersonProfessor J.S. Ibsen (voice) Dee Dee GreeneJudy Shepherd (voice) Sherman HowardVan Pelt (voice) Melanie ChartoffAunt Nora Shepherd (voice) Bill FagerbakkeAlan Parrish (voice) Tim CurryTrader Slick (voice) Kevin SchonDead-Eye (voice) Richard AllenTribal Bob (voice) Kevin D. CampbellSchrijver Siobhan Byrne O'ConnorSchrijver Everett PeckCharacter Designer Richard J. GasparianAnimation Manager 
