Directed by
| Jesús Franco | ... | (as J. Franco) |
Writing Credits
| Jesús Franco | ... | (original screenplay) (as David Kuhne) |
| Jean-Claude Carrière | ... | (adaptation) |
| Jean-Claude Carrière | ... | (dialogue) |
Cast (in credits order) complete, awaiting verification
| Estella Blain | ... | Nadia | |
| Mabel Karr | ... | Irma Zimmer | |
| Howard Vernon | ... | Dr. Vicas | |
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Fernando Montes | ... | Philippe |
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Marcelo Arroita-Jáuregui | ... | Dr. Moroni (as Marcelo Arroita) |
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Cris Huerta | ... | Dr. Kallman |
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Alberto Bourbón | ... | Policeman (as Albert Bourbon) |
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Guy Mairesse | ... | Hans Bergen |
| Rest of cast listed alphabetically: | |||
| Francisco Camoiras | ... | Fisherman (uncredited) | |
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Mer Casas | ... | Mrs. Moroni (uncredited) |
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Ana Castor | ... | Juliana (uncredited) |
| Jesús Franco | ... | Inspector Tanner (uncredited) | |
| Rafael Hernández | ... | Assistant to Inspector Green (uncredited) | |
| Antonio Jiménez Escribano | ... | Dr. Zimmer (uncredited) | |
| José María Prada | ... | Policeman (uncredited) | |
| Lucía Prado | ... | Barbara Albert (uncredited) | |
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Javier de Rivera | ... | Notary (uncredited) |
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Vicente Roca | ... | Police Doctor (uncredited) |
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Ángela Tamayo | ... | Girl at the Nightclub (uncredited) |
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Daniel White | ... | Inspector Green (uncredited) |
Produced by
| Henri Baum | ... | line producer |
| Michel Safra | ... | producer |
| Serge Silberman | ... | producer |
Music by
| Daniel White | ||
Cinematography by
| Alejandro Ulloa | ... | director of photography |
Editing by
| Marie-Louise Barberot | ||
| Jean Feyte | ||
Production Design by
| Antonio Cortés | ... | (as Tony Cortes) |
Set Decoration by
| Antonio Cortés | ... | (as Tony Cortes) |
Makeup Department
| Raymond Ferrer | ... | key makeup artist |
Production Management
| Eric Geiger | ... | production manager |
Second Unit Director or Assistant Director
| Robert Demollière | ... | assistant director (as R. Demollière) |
Art Department
| Eric Geiger | ... | property master |
Sound Department
| Louis Hochet | ... | sound engineer |
Camera and Electrical Department
| Clemente Manzano | ... | camera operator |
Editorial Department
| Arlette Lalande | ... | assistant editor |
| Monique Teisseire | ... | assistant editor |
Script and Continuity Department
| Nicole Guettard | ... | script supervisor |
Additional Crew
| Odette Darrigol | ... | production secretary |
| Jacqueline Dudilleux | ... | administrator |
| Jean Van Praag | ... | administrator |
| Salvador Arias | ... | voice dubbing: Antonio Jiménez Escribano (uncredited) |
| Lola Cervantes | ... | voice dubbing: Mabel Karr (uncredited) |
| Rafael de Penagos | ... | voice dubbing: Jesús Franco (uncredited) |
| Luis María Lasala | ... | voice dubbing: Cris Huerta (uncredited) |
| José Martínez Blanco | ... | voice dubbing: Fernando Montes (uncredited) |
| Mayte Santamarina | ... | voice dubbing: Estella Blain (uncredited) |
| Manuel Torremocha | ... | voice dubbing: Howard Vernon (uncredited) |
