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