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Jorge Mistral as Jean Balzac / Paul Banek |
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Nani Fernández as Dana |
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Rubén Rojo as Chapek |
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Jesús Tordesillas as Josef |
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Félix Dafauce as Grumko |
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Nicolás D. Perchicot as Padre Oberski |
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Juan Manuel Soriano as Genka |
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María Dolores Gispert as Ludmilla |
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Tomás Torres as Juan |
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César Ojinaga as Lukas |
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Joan Capri as Especialista en minas |
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José Marco as Kadenko |
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Diana Mayer as Isa |
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Esther Parera as Maruska |
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Fernando Cebrián as hermano de Kadenko |
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Pepe Rubio as (no acreditado) |
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Ventura Oller as (no acreditado) |
| Art | Sigfrido Burman | Set Decoration |
| Camera | José F. Aguayo | Director of Photography |
| Costume & Make-Up | Rafael Richart | Costume Design |
| Editing | Petra de Nieva | Editor |
| Sound | Isidro B. Maiztegui | Original Music Composer |
| Production | Telesforo de la Plaza | Production Manager |
| Camera | Francisco Sempere | Director of Photography |
| Directing | José Antonio Nieves Conde | Director |
| Writing | José Antonio de la Loma | Story |
| Writing | Lluís Josep Comerón | Story |
| Writing | Jorge Illa | Story |
| Directing | José María Forqué | Director |
| Writing | Manuel Tamayo | Writer |
