Albert Préjean
Le commissaire Maigret
Acting
Santa Relli
Cécile
Acting
Germaine Kerjean
Madame Boynet
Acting
Luce Fabiole
Madame Petitot, la concierge
Acting
Liliane Maigné
Nouchi
Acting
André Gabriello
Lucas (as Gabriello)
Acting
Jean Brochard
Dandurand
Acting
Yves Deniaud
Machepied
Acting
André Reybaz
Gérard Pardon
Acting
Marcel Carpentier
Dr. Pierre
Acting
Marcel André
Le directeur de la P.J.
Acting
Henry Bonvallet
Le juge d'instruction (as Henri Bonvalet)
Acting
Charles Blavette
Monfils
Acting
France Asselin
Hélène Pardon (uncredited)
Acting
Paul Barge
Monsieur Louis (uncredited)
Acting
Jacques Beauvais
Monsieur Paul (uncredited)
Acting
Fernand Blot
Un inspecteur (uncredited)
Acting
Charles Camus
Léopold (uncredited)
Acting
Jean Clarieux
Voyageur dans le métro (uncredited)
Acting
Marius David
(uncredited)
Acting
Charlotte Ecard
L'amie de la concierge (uncredited)
Acting
Pierre Ferval
Un gendarme (uncredited)
Acting
Eugène Frouhins
Le serrurier (uncredited)
Acting
Gustave Gallet
Le médecin (uncredited)
Acting
Alice Gosset
La femme au tandem (uncredited)
Acting
Georges Gosset
L'homme au tandem (uncredited)
Acting
Charles Lavialle
Le raccommodeur de faïence (uncredited)
Acting
Jean Martin
Le garçon d'étage (uncredited)
Acting
Marcel Melrac
Le chauffeur de taxi (uncredited)
Acting
Geneviève Morel
Une amie de Madame Petiot (uncredited)
Acting
Julienne Paroli
La femme de ménage (uncredited)
Acting
Marcel Raine
Un complice de Dandurand (uncredited)
Acting
Maurice Salabert
Un inspecteur (uncredited)
Acting
Henri Vilbert
Un inspecteur (uncredited)
Acting