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Chet Bacon as OP |
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Diana Lorys as Dinah |
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Luciano Pigozzi as Don Wilson |
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Roberto Camardiel as Sheriff Noonan |
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Antonio Mayans as |
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Daniel Martín as Max Thaler |
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Nat Greenwood as |
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Adolfo Thous as |
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Eduardo Bea as |
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Francisco Clement as |
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Francisco Casares as |
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Manuela Alcardi as |
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Lone Fleming as |
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José Yepes as |
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Jesús Enguita as |
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Antonio Molino Rojo as Peter |
| Directing | Juan Bosch | Director |
| Writing | Juan Bosch | Writer |
| Writing | Alberto De Stefanis | Writer |
| Writing | Dashiell Hammett | Novel |
| Production | José María Cunillés | Producer |
| Production | Antonio Girasante | Producer |
| Production | Luis Marin | Producer |
| Production | Alberto Grimaldi | Executive Producer |
| Sound | Franco Julian | Music |
| Camera | Gino Santini | Director of Photography |
| Editing | José Antonio Rojo | Editor |
| Art | Cruz María Baleztena | Set Decoration |
| Directing | Zacarías Urbiola | Assistant Director |
| Camera | Ricardo Navarrete | Camera Operator |
| Camera | Santiago Zuazo | Focus Puller |
| Editing | Concepción Piño | Assistant Editor |
| Directing | Margarita Fernández | Script Supervisor |
