Directed by
| Juan Bosch | ... | (as Joan Bosch) |
Writing Credits (in alphabetical order)
| Juan Bosch | ... | (screenplay) (as Joan Bosch) |
| Jordi Gigó | ... | (as Georges Gigo) |
| Paul Naschy | ... | (screenplay) (as Jacinto Molina) |
| Paul Naschy | ... | (story) (as Jacinto Molina) |
Cast (in credits order) verified as complete
| Paul Naschy | ... | Father Adrian Dunning | |
| Maria Perschy | ... | Patricia Gibson | |
| María Kosty | ... | Deborah Gibson (as Maria Kosti) | |
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Mercedes Molina | ... | Leila Gibson (as Grace Mills) |
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Jordi Torras | ... | Dr. Lewton Buchanan (as Jorge Torras) |
| Luis Induni | ... | Udo | |
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Roger Leveder | ... | Richard Harrington |
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Joan Llaneras | ... | John Gibson (as Juan Llaneras) |
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Marta Avilés | ... | Sandra (as Martha Avile) |
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Juan Velilla | ... | Comisario (as Joan Velilla) |
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Florencio Calpe | ... | Christian |
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Dora Santacreu | ... | Abigail |
| Rest of cast listed alphabetically: | |||
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Gero | ... | Bork - The Dog |
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Esteban Dalmases | ... | Policía (uncredited) |
| Jack Taylor | ... | Father Adrian Dunning (voice) (uncredited) | |
Produced by
| J.A. Pérez Giner | ... | producer (as José Antonio Pérez Giner) |
Music by
| Alberto Argudo | ||
Cinematography by
| Francisco Sánchez | ... | director of photography (as Francisco Sanchez) |
Editing by
| Antonio Ramírez de Loaysa | ... | (as Antonio Ramirez) |
Art Direction by
| Alfonso de Lucas | ||
Set Decoration by
| Alfonso de Lucas | ||
Makeup Department
| Hipólita López | ... | hair stylist (as Hipolita Lopez) |
| Joaquín Navarro | ... | assistant makeup artist (as Joaquin Navarro) |
| Adolfo Ponte | ... | makeup artist |
| Manolita Ponte | ... | makeup artist (as Manolita G. De Ponte) |
Production Management
| Luis Marin | ... | production manager |
| Modesto Pérez Redondo | ... | production manager (as Modesto Perez Redondo) |
Second Unit Director or Assistant Director
| Ángel G. Gauna | ... | assistant director (as Angel Gauna) |
Art Department
| Alfonso de Lucas | ... | set designer |
| Ramon Ivars | ... | assistant set designer |
Special Effects by
| Alfredo Segoviano | ... | special effects |
Camera and Electrical Department
| Agustín Barril | ... | assistant camera (as Agustin Barril) |
| Pedro Bravo | ... | chief electrician |
| Javier Ferrer | ... | assistant camera |
| Santiago Rodríguez | ... | second operator (as Santiago Rodriguez) |
| José Salvador | ... | still photographer (as Jose Salvador) |
Costume and Wardrobe Department
| Ana Salmerón | ... | wardrobe mistress (as Ana Salmeron) |
Editorial Department
| Monserrat Isern | ... | assistant editor |
Additional Crew
| Ramón Escribano | ... | production assistant (as Ramon Escribano) |
| Lluís Ferrando | ... | production assistant (as Luis Ferrando) |
| José Malla | ... | production assistant (as Jose Malla) |
| Miguel Tristán | ... | shooting secretary (as Miguel Tristan) |
| José María Alarcón | ... | voice dubbing: Luis Induni (uncredited) |
| Marta Angelat | ... | voice dubbing: Marta Avilés (uncredited) |
| Arsenio Corsellas | ... | voice dubbing: Paul Naschy (uncredited) |
| Vicenç Manel Domènech | ... | voice dubbing: Florencio Calpe (uncredited) |
| Elsa Fábregas | ... | voice dubbing: Maria Perschy (uncredited) |
| Antonio García Moral | ... | voice dubbing: Juan Llaneras (uncredited) |
| Enriqueta Linares | ... | voice dubbing: María Kosty (uncredited) |
| Maria Jesús Lleonart | ... | voice dubbing: Mercedes Molina (uncredited) |
| Marta Martorell | ... | voice dubbing: Dora Santacreu (uncredited) |
| Pepe Mediavilla | ... | voice dubbing: Esteban Dalmases (uncredited) |
| José Maria Santos | ... | voice dubbing (uncredited) |
| Ricard Solans | ... | voice dubbing: Roger Leveder (uncredited) |
| Jack Taylor | ... | voice dubbing: Paul Naschy (english version) (uncredited) |
