Albert Préjean
Role: Maigret
Juliette Faber
Role: Berthe
Jean Tissier
Role: Mascouvin
André Gabriello
Role: Lucas
Noël Roquevert
Role: Louis Dubief
Guillaume de Sax
Role: Maître Laignan
Édouard Delmont
Role: Le Cloaguen
Antoine Balpêtré
Role: Le grand patron
Henri Vilbert
Role: Amadieu
Pierre Palau
Role: Le docteur Pierre
Gabrielle Fontan
Role: La soeur de Le Cloaguen
Colette Régis
Role: Madame Le Cloaguen
Jean-Marie Boyer
Role: Le petit employé (uncredited)
Albert Brouett
Role: (uncredited)
Henri Charrett
Role: (uncredited)
Raymond Dardelin
Role: (uncredited)
Jean Dasté
Role: Le clerc (uncredited)
Jean Daurand
Role: Le coursier (uncredited)
France Delahalle
Role: (uncredited)
Jacques Denoël
Role: Jacques (uncredited)
Marguerite Ducouret
Role: Madame Cognet (uncredited)
Marcel Duhamel
Role: Le peintre (uncredited)
Pierre Ferval
Role: (uncredited)
Fabienne Fortaire
Role: (uncredited)
Édouard Francomme
Role: (uncredited)
Georges Gosset
Role: (uncredited)
Héléna Manson
Role: Marie, la bonne (uncredited)
Maurice Marceau
Role: Un inspecteur (uncredited)
Frédéric Mariotti
Role: Le garçon du buffet (uncredited)
Maximilienne
Role: Madame Bertaud (uncredited)
Marcelle Rexiane
Role: La patronne de l'hôtel (uncredited)
André Varennes
Role: Bouffartigues (uncredited)
Huguette Vivier
Role: Eliane (uncredited)
Janine Viénot
Role: La concierge de Jeanne Dumont (uncredited)