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Albert Préjean as Le commissaire Jules Maigret |
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Suzy Prim as Émilie Petersen |
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Denise Grey as Madame Van Bell |
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Jacques Baumer as Arthur Donge |
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Florelle as Charlotte Donge |
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André Gabriello as L'inspecteur Lucas |
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Fernand Charpin as Le juge d'instruction |
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Jean Marchat as Fred Petersen |
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Gina Manès as Ginette, la femme de service |
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René Génin as Ramuel |
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Denise Bosc as Hélène Donnegan, la secrétaire des Petersen |
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Gabrielle Fontan as Rosalie, la bonne de Fualdès |
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Jeanne Manet as La chanteuse du cabaret |
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Georges Chamarat as Dussart, le veilleur de nuit du Majestic |
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Marcel Lévesque as Le directeur de l'Agence Internationale |
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Jean-Jacques Delbo as Enrico Fualdès |
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Rognoni as Le directeur du Majestic |
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Robert Demorget as Le petit Teddy Petersen |
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Serge Berry as Le remplaçant de Donge (uncredited) |
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Jean-Marie Boyer as Un commis de cuisine (uncredited) |
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Jean Clarieux as Le chauffeur de taxi (uncredited) |
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Marius David as (uncredited) |
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Charlotte Ecard as La concierge de Maigret (uncredited) |
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Richard Francœur as Delormel, l'employé de banque (uncredited) |
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Édouard Francomme as (uncredited) |
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Louis Frère as Un cuisinier (uncredited) |
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Émile Genevois as Le jeune cuistot (uncredited) |
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Marcel Melrac as Un inspecteur (uncredited) |
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Julienne Paroli as Madame Marcelle, employée aux cuisines (uncredited) |
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Maurice Salabert as Un inspecteur (uncredited) |
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Henri Vilbert as Le chef cuisinier (uncredited) |
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Marie-José as La chanteuse (voice) (uncredited) |
| Directing | Richard Pottier | Director |
| Writing | Charles Spaak | Adaptation |
| Writing | Charles Spaak | Dialogue |
| Writing | Georges Simenon | Novel |
