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Ray Milland as Dr. Roger Mann |
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Sylva Koscina as Sonja Dorigny |
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Ramiro Oliveros as Inspector Mathieu |
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Franco Giacobini as Inspector Delon |
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Charly Bravo as |
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María Silva as School Teacher |
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May Heatherly as Marina |
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Eduardo Calvo as Marcel Boulone |
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Marisa Porcel as |
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Luis Gaspar as Policeman |
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María Vico as Teacher |
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Swan Heinze as Airplane Passenger |
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Antonio Orengo as Coroner |
| Directing | Rafael Romero Marchent | Director |
| Writing | Rafael Romero Marchent | Writer |
| Sound | Stelvio Cipriani | Original Music Composer |
| Writing | José Manuel Martín | Writer |
| Writing | José Luis Navarro | Writer |
| Camera | Godofredo Pacheco | Director of Photography |
| Directing | Ramiro De Maeztu | Script Supervisor |
| Writing | Luciano Ercoli | Writer |
