A kidnapped diver is taken to an island inhabited by a mad scientist and his half-animal, half-human creations.
| Actor | Role |
|---|---|
 John AshleyMatt Farrell | Matt Farrell |
 Pat WoodellNeva Gordon | Neva Gordon |
 Jan MerlinSteinman | Steinman |
 Charles MacaulayDr. Gordon | Dr. Gordon |
 Pam GrierAyesa, the Panther Woman | Ayesa, the Panther Woman |
| KKen MetcalfeKuzma, the Antelope Man | Kuzma, the Antelope Man |
| KKim RamosPrimo, the Ape Man | Primo, the Ape Man |
| MMona MorenaLupa, the Wolf Woman | Lupa, the Wolf Woman |
 Eddie GarciaJuan Pereira | Juan Pereira |
| AAndres CenteneraNot listed | Not listed |
| TTony GosalvezDarmo, the Bat Man | Darmo, the Bat Man |