Directed by
| Jack Hill | ... | (US scenes) |
| Juan Ibáñez | ... | (Mexican scenes) |
Writing Credits (in alphabetical order)
| Jack Hill | ... | (writer) |
| Luis Enrique Vergara | ... | (writer) |
Cast (in credits order)
| Boris Karloff | ... | Dr. Karl Mantell | |
| Julissa | ... | Corinne Mantell | |
| Carlos East | ... | Mark | |
| Isela Vega | ... | Helga | |
| Yerye Beirute | ... | Roland | |
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Sandra Chávez | ... | Luisa Martinez |
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Eva Muller | ... | Bailarina / striptease dancer |
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Santanón | ... | Enano / dwarf |
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Pamela Parmeli | ... | Motorista rubia / blonde motorist (as Pamela) |
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Fuensanta Zertuche | ... | Sally Ransome (as Fuensanta) |
| Rest of cast listed alphabetically: | |||
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Alfredo Rosas | ... | Syed (as Rosas) |
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Carolina Cortázar | ... | Clienta / client (uncredited) |
Produced by
| Luis Enrique Vergara | ... | producer |
Music by
| Enrico C. Cabiati | ||
Cinematography by
| Raúl Domínguez | ||
| Austin McKinney | ||
Editing by
| Felipe Marino | ||
Art Direction by
| José Méndez | ||
| Octavio Ocampo | ||
Set Decoration by
| Raúl Cárdenas | ||
Costume Design by
| Vicente Tostado | ||
Makeup Department
| Antonio Ramirez | ... | makeup artist (as Tony Ramirez) |
Production Management
| José Luis Cerrada | ... | production manager |
Second Unit Director or Assistant Director
| José Luis González de León | ... | assistant director |
Sound Department
| Heinrich Henkel | ... | sound recordist |
| Víctor Rojo | ... | dialogue recordist |
Camera and Electrical Department
| Eduardo Rojo | ... | camera operator |
Additional Crew
| Guillermo Olivera | ... | production coordinator |
| Stillman Segar | ... | dialogue director (as Stim Segar) |
| James M. Tanenbaum | ... | computer technical advisor (uncredited) |
