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Jane Sourza as Miss Alice Postic, switchboard operator |
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Raymond Souplex as Inspector Henri Grandin |
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Colette Gérard as Virginie Renoir, typist of the study |
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Noëlle Musard as Suzanne Brissard, notary's secretary |
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Robert Thomas as Mr. Laroche (a corpse client) / Mr. Logan, 1st clerk |
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Vivette Galy as Mrs. Tachard, dissatisfied customer |
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Jacques Verlier as Robert de Charancé, second clerk of the study |
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Marcel Charvey as Maître Rocher, notary |
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Catherine Gay as Mrs. Clara Rocher, wife of the notary |
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Edmond Ardisson as Maximin, police officer |
| Costume & Make-Up | Donald Cardwell | Costume Design |
| Directing | Pierre Sabbagh | Director |
| Camera | Lucien Billard | Director of Photography |
| Writing | Robert Thomas | Adaptation |
| Writing | Jack Popplewell | Author |
| Art | Robert Thomas | Decorator |
| Camera | Jacques Courbon | Camera Operator |
| Camera | J.R. Van Waerbeke | Camera Operator |
| Camera | Lucien Ballard | Camera Operator |
| Directing | Marlène Bertin | Script Supervisor |
| Camera | Michel Thibaut | Camera Operator |
| Crew | Edward Sanderson | Manager of Operations |
| Art | Roger Harth | Decorator |
| Camera | Jacques Guillier | Camera Operator |
| Sound | Claude Couchouron | Sound Engineer |
| Directing | Robert Thomas | Stage Director |
| Camera | Henri Lamare | Video Report |
| Directing | Jean-Luc Géninasca | Assistant Director |
| Directing | Guy Mauplot | Assistant Director |
