Cientista da Fuzarca
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Leo GorceyTerence Aloysius 'Slip' Mahoney
Huntz HallSach
Douglass DumbrilleDr. Coslow
Bobby JordanBobby
Gabriel DellGabe 'Gabie' Moreno
William BenedictWhitey (as Billy Benedict)
David GorceyChuck
Tanis ChandlerMignon
Maurice CassDr. Bender
Vera LewisMrs. Grimm
Charles MiddletonMr. Stiles
Chester CluteBrown
Richard AlexanderIvan
Bernard GorceyLouis Xavier 'Louie' Dumbrowski- Charles MillsfieldDean Pettyboff
- Art MilesHerman the Gorilla (as Arthur Miles)