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María Félix as Freyra |
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Fernando Rey as Ulises / Capitán Ferragut |
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José Nieto as Kurt |
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Juan Espantaleón as Tío Caragón |
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Porfiria Sanchiz as Doctora Fedelman |
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Eduardo Fajardo as Capitán |
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Ángel de Andrés as Toni |
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Guillermo Marín as Von Kramer / Conde Gavelin |
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Rafael Romero Marchent as Esteban |
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Nerio Bernardi as Enrico De Paoli |
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Osvaldo Genazzani as John |
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Arturo Marín as Jefe tribunal militar |
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Félix Fernández as Recepcionista hotel |
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José Franco as Maitre |
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José Prada as Miembro tribunal |
| Writing | Antonio Abad Ojuel | Screenplay |
| Sound | Juan Quintero | Original Music Composer |
| Writing | Rafael Gil | Screenplay |
| Writing | Vicente Blasco Ibáñez | Original Story |
| Directing | Rafael Gil | Director |
| Production | Cesáreo González | Producer |
| Art | Enrique Alarcón | Production Design |
| Editing | José Antonio Rojo | Editor |
| Directing | José Luis Robles | Assistant Director |
| Costume & Make-Up | Armando Valdés Peza | Costume Design |
| Camera | Alfredo Fraile | Director of Photography |
