출연진
Albert Préjean
Le commissaire Maigret
Santa Relli
Cécile
Germaine Kerjean
Madame Boynet
Luce Fabiole
Madame Petitot, la concierge
Liliane Maigné
Nouchi
André Gabriello
Lucas (as Gabriello)
Jean Brochard
Dandurand
Yves Deniaud
Machepied
André Reybaz
Gérard Pardon
Marcel Carpentier
Dr. Pierre
Marcel André
Le directeur de la P.J.
Henry Bonvallet
Le juge d'instruction (as Henri Bonvalet)
Charles Blavette
Monfils
France Asselin
Hélène Pardon (uncredited)
Paul Barge
Monsieur Louis (uncredited)
Jacques Beauvais
Monsieur Paul (uncredited)
Fernand Blot
Un inspecteur (uncredited)
Charles Camus
Léopold (uncredited)
Jean Clarieux
Voyageur dans le métro (uncredited)
Marius David
(uncredited)
Charlotte Ecard
L'amie de la concierge (uncredited)