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Marie Laforêt as Marie-Chantal |
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Francisco Rabal as Paco Castillo |
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Serge Reggiani as Ivanov |
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Charles Denner as Johnson |
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Stéphane Audran as Olga |
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Akim Tamiroff as Prof. Lambaré / Dr. Kha |
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Roger Hanin as Bruno Kerrien |
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Antonio Passalia as Sparafucile |
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Pierre-François Moro as Hubert de Ronsac |
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Robert Burnier as A Swiss Gentleman |
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Gilles Chusseau as Gregor |
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Eugenio Di Petra as |
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Onofrio Arcoleo as |
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Gérard Tichy as Maitre d'Hôtel |
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José María Caffarel as (as Caffarel) |
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Henri Attal as Dumont |
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Bernard Papineau as |
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Lahcen Boukish as Thug in a Bournous |
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Serge Bento as |
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Claude Chabrol as Bartender (uncredited) |
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Jacques Hilling as (uncredited) |
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Albert Michel as (uncredited) |
| Production | Georges de Beauregard | Producer |
| Production | Pierre Gauchet | Producer |
| Sound | Gregorio García Segura | Music |
| Sound | Pierre Jansen | Music |
| Art | Guy Littaye | Production Design |
| Costume & Make-Up | Carmen Fatum | Makeup Artist |
| Production | Abderhamane Benkirane | Assistant Production Coordinator |
| Production | Gérard Beytout | Unit Production Manager |
| Production | René Demoulin | Production Director |
| Production | Pierre Gauchet | General Manager |
| Production | Colette Roy | Production Secretary |
| Production | Roger Scipion | Production Supervisor |
| Directing | Claude Bakka | Second Assistant Director |
| Directing | Lucio D'Attino | Second Assistant Director |
| Directing | Philippe Fourastié | First Assistant Director |
| Directing | Mohamed Osfour | Second Assistant Director |
| Directing | Alexis Poliakoff | Second Assistant Director |
| Sound | Jean-Claude Marchetti | Sound Mixer |
| Sound | Guy Odet | Sound Engineer |
| Sound | Guy Villette | Sound Mixer |
| Camera | Paul Bonis | Assistant Camera |
| Camera | André Dino | Still Photographer |
| Camera | Claude Zidi | Camera Operator |
| Editing | Catherine Bernard | Editorial Services |
| Sound | Pierre Colombier | Musician |
| Sound | André Girard | Conductor |
| Directing | Suzanne Faye | Continuity |
| Writing | Claude Chabrol | Scenario Writer |
| Writing | Yves Christian Fournier | Scenario Writer |
| Writing | Daniel Boulanger | Dialogue |
| Writing | Claude Chabrol | Writer |
| Directing | Claude Chabrol | Director |
| Camera | Jean Rabier | Director of Photography |
| Editing | Jacques Gaillard | Editor |
| Editing | Monique Fardoulis | Assistant Editor |
