Directed by
| Rafael Romero Marchent | ||
Writing Credits (in alphabetical order)
| Luciano Ercoli | ||
| José Manuel Martín | ... | (as José M. Martin) |
| José Luis Navarro | ||
| Rafael Romero Marchent | ||
Cast (in credits order)
| Ray Milland | ... | Dr. Roger Melli | |
| Sylva Koscina | ... | Sonya Dorigny | |
| Ramiro Oliveros | ... | Inspector Mathieu | |
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Franco Giacobini | ... | Chief Inspector Delon |
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Charly Bravo | ... | The Hitman |
| María Silva | ... | School Teacher | |
| May Heatherly | ... | Marina | |
| Eduardo Calvo | ... | Marcel Boulone | |
| Marisa Porcel | |||
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Luis Gaspar | ... | Policeman |
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María Vico | ... | Teacher |
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Mario Álex | ... | Professor Roubière |
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Walter Zamudio | ||
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Swan Heinze | ... | Airplane Passenger (as Swan) |
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Antonio Orengo | ... | Coroner |
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Agustín Bescos | ... | Sonia's servant |
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Luis Kobbe | ... | Henri |
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Edy Linga | ... | Boy |
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Scott Thomson | ... | Boy |
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Fernando E. Romero | ... | Jean Dorigny |
Produced by
| Luis Méndez | ... | executive producer |
Music by
| Stelvio Cipriani | ||
Cinematography by
| Godofredo Pacheco | ||
Editing by
| Maurizio Mangosi | ||
| María Luisa Soriano | ||
Set Decoration by
| Román Calatayud | ||
| Carlo Gentili | ||
Makeup Department
| Vicenta Palmero | ... | hair stylist |
| Julián Ruiz | ... | makeup artist |
| Antonio Segovia | ... | assistant makeup artist |
Production Management
| Julián Esteban | ... | production manager |
Second Unit Director or Assistant Director
| Luis Gómez Valdivieso | ... | assistant director |
Art Department
| José Garijo | ... | property master |
Sound Department
| Enrique Molinero | ... | sound technician |
Special Effects by
| Pablo Pérez | ... | special effects |
Camera and Electrical Department
| Francisco Beringola | ... | assistant camera |
| Francisco Bermejo Miranda | ... | assistant camera |
| Salvador Gil | ... | second operator |
| Julio Sánchez Caballero | ... | still photographer |
Costume and Wardrobe Department
| Faustino Barroso | ... | costume assistant |
| Antonio Muñoz | ... | wardrobe |
Editorial Department
| Amalia Azcuaga | ... | assistant editor |
Location Management
| Miguel Ángel Bermejo | ... | location manager |
Script and Continuity Department
| Ramiro de Maeztu | ... | script supervisor (as Ramiro De Maeztu) |
Additional Crew
| Salvador Ginés | ... | production assistant |