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Lawrence Tierney as Robert Warren |
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Marissa O'Brien as Maria Marek |
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Rudolph Anders as Gregory Marek |
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George Coulouris as Victor Sloma |
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Veloso Pires as Damiao, the mute (as Velosa Pires) |
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Helga Liné as Dancer |
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Lopes da Silva as Huerta |
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Leonor Maia as Nina |
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João Amaro as Jose |
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Licinio Sena as Procopio |
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Mira Lobo as Overseer |
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Álvaro Benamor as (uncredited) |
| Sound | Karl Hajos | Original Music Composer |
| Camera | J. Roy Hunt | Director of Photography |
| Editing | W.L. Bagier | Editor |
| Writing | Lawrence L. Goldman | Writer |
| Production | Walter Jurmann | Producer |
| Writing | Max Nosseck | Writer |
| Writing | Arnold Lipp | Writer |
| Directing | Max Nosseck | Director |
| Crew | Ray Mercer | Special Effects |
| Sound | Luís Sousa Santos | Sound Engineer |
| Art | Raúl de Campos | Set Decoration |
