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Louis Jouvet as Ismmora / Dupon / Duke of Niolles / Mover / Norwegian |
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Suzy Delair as Coraline, Ismora's mistress |
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Annette Poivre as Charlotte Bonheur, typist, colleague of Gabriel |
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Jean-Jacques Delbo as Oscar, Ismora's accomplices |
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Jean Carmet as Ismora's accomplices |
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Jane Marken as Concierge |
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Georges Pally as Inspector Laprune |
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Robert Seller as Investigating judge |
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Henri Charrett as Mr. Charles Rodebois, buyer of the castle |
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Fernand Rauzéna as Mr. Peroni, button buyer |
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Gaston Dupray as Mr. Touzat, Gabriel's boss |
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Jean Morel as Mr. Sorbier, jeweler |
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Philippe Olive as Receptionist at the Malridge hotel |
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Léo Lapara as André, Ismora's accomplices |
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Raoul Marco as Inspector |
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Jean Diéner as Castle guardian |
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Madeleine Suffel as Mrs. Charles |
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George Cusin as Mr. Pauzat |
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Jean Poc as Academician |
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Danièle Franconville as Client of Ismora (uncredited) |
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Colette Georges as Hotel florist (uncredited) |
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Paule Launay as (uncredited) |
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Louis Vonelly as (uncredited) |
| Directing | Jean Dréville | Director |
| Writing | Henri Jeanson | Dialogue |
| Art | Robert Gys | Production Design |
| Production | Jacques Roitfeld | Producer |
| Writing | Jacques Companéez | Adaptation |
| Writing | Jacques Companéez | Scenario Writer |
| Writing | Christiane Imbert | Adaptation |
| Writing | Nino Frank | Adaptation |
| Editing | Jean Feyte | Editor |
| Production | Raymond Borderie | Producer |
| Camera | André Thomas | Director of Photography |
| Production | Muller | Assistant Unit Manager |
| Sound | René Cloërec | Music |
| Art | Foucher | Art Department Assistant |
| Art | Jacques Chalvet | Art Department Assistant |
