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Michel Serrault as Docteur Petiot |
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Pierre Romans as Drezner |
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Bérangère Bonvoisin as Georgette Petiot |
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Zbigniew Horoks as Nathan Guzik |
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Olivier Saladin as le premier agent |
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André Julien as Forestier |
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Nini Crépon as Collard |
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Maxime Collion as Gérard Petiot |
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Aurore Prieto as Mme Guzik |
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André Chaumeau as Célestin Nivelon |
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Axel Bogousslavsky as Louis Rossignol |
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Maryline Even as la mère de l'enfant malade |
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Nita Klein as Mme Kern |
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Dominique Marcas as Mme Valéry |
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Martine Mongermont as Cécile Drezner |
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Julien Verdier as le pharmacien |
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Lorella Cravotta as la voisine de Petiot |
| Directing | Christian de Chalonge | Director |
| Production | Michel Serrault | Producer |
| Writing | Christian de Chalonge | Writer |
| Production | Alain Sarde | Producer |
| Production | Philippe Chapelier-Dehesdin | Producer |
| Production | Christine Gozlan | Executive Producer |
| Writing | Dominique Garnier | Writer |
| Costume & Make-Up | Jean-Charles Bachelier | Hairstylist |
| Sound | Marie-Jeanne Wyckmans | Sound |
| Costume & Make-Up | Catherine Demesmeaker | Makeup Artist |
| Sound | Jean-Pierre Duret | Sound |
| Art | Yves Brover-Rabinovici | Production Design |
| Sound | Vincent Arnardi | Sound Re-Recording Mixer |
| Camera | Patrick Blossier | Director of Photography |
| Sound | Michel Portal | Original Music Composer |
| Editing | Anita Fernández | Editor |
| Costume & Make-Up | Corinne Jorry | Costume Design |
