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Yves Deniaud as L'inspecteur-chef Bonnardel |
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Yves Vincent as L'inspecteur Richard, jeune assistant débutant de Bonnardel |
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Élina Labourdette as Catherine Villard, maîtresse de Dorgères |
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Henri Crémieux as M. Phalempeau, homme d'affaires |
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Robert Dalban as L'inspecteur Sylvestre, adjoint de Bonnardel |
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Jean Debucourt as Maître Landry, avocat pénaliste, ténor du barreau |
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Marie Déa as Mme Le Mesles |
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Marcel André as Le médecin légiste |
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Marthe Mercadier as La détenue-manucure |
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Charles Dechamps as Le juge d'instruction Ferrand |
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Henri Nassiet as Paul Dorgères, homme d’affaires |
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María Riquelme as Étiennette, la concierge |
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Guy Decomble as Le concierge |
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Olivier Hussenot as |
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Jean Barrère as Pierre |
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Charles Vissières as Le détective Henri Bouteiller |
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Marcel Delaître as Le commissaire |
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André Dumas as |
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Michel Etcheverry as Bertrand Moal |
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Fernand René as Le tailleur |
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Paul Villé as Le maître d'hôtel de Dorgères |
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Julien Maffre as L'hôtelier de Marseille |
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Zélie Yzelle as La cuisinière de Dorgères |
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Madeleine Barbulée as La voisine |
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Myriam Bru as La nièce |
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Jacqueline Huet as La vendeuse d'articles de maroquinerie |
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Odette Barencey as Une femme |
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Alfred Adam as Le vendeur de boutons (uncredited) |
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René Dupuy as (uncredited) |
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Robert Lussac as Le Mesles (uncredited) |
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Jacques Morlaine as Un journaliste (uncredited) |
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Nadine Tallier as Amélie, la soubrette (uncredited) |
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Ernest Varial as Un homme (uncredited) |
| Directing | Richard Pottier | Director |
| Directing | Gérard Ducaux-Rupp | Assistant Director |
| Writing | René Floriot | Writer |
| Writing | René Floriot | Screenplay |
| Writing | Marc-Gilbert Sauvajon | Adaptation |
| Writing | Marc-Gilbert Sauvajon | Dialogue |
| Production | François Chavane | Producer |
| Production | Alain Poiré | Producer |
| Production | Robert Sussfeld | Production Director |
| Crew | Maurice Barry | Cinematography |
| Camera | Jean Lallier | Camera Operator |
| Sound | Fernand Janisse | Sound Engineer |
| Sound | Marc Lanjean | Original Music Composer |
| Art | Lucien Carré | Decorator |
| Costume & Make-Up | René Daudin | Key Makeup Artist |
| Editing | Jean Feyte | Editor |
| Crew | Régine Hernou | Script |
| Camera | Raymond Heil | Still Photographer |
| Crew | Jacques Pignier | Manager of Operations |
