Henri Verneuil
Director
Georges Simenon
Novel
Stanislas-André Steeman
Writer
Peter Cheyney
Writer
Jacques Companéez
Writer
André Germain
Director of Photography
Jules Calamy
Producer
Raymond Froment
Producer
Hans May
Music
Gabriel Rongier
Editor
René Moulaert
Production Design
Julien Rivière
Production Manager
Jacques Lebreton
Sound
Michel Simon
Le commissaire Jules Maigret
Raymond Rouleau
L'inspecteur Wenceslas Vorobeïtchik dit Wens
John van Dreelen
Le G'man Lemmy Caution
André Dalibert
Le commissaire Malaise
René Génin
Le concierge
Arlette Merry
Florence Garnier
Jacqueline Porel
Denise
Maurice Teynac
Heldinge
Reinhard Kolldehoff
Hartner
Inge Langdut
Gisella Hauptmann
Nathalie Nattier
Michèle Leroy
Pierre Sergeol
Leblond
Georges Tabet
Hubert
Christian Fourcade
Justin
Jérôme Goulven
Simon Lesueur, le brocanteur
Alexandre Rignault
L'inspecteur Janvier
Claire Olivier
Madame Maigret
Marguerite Garcya
La mère de Justin
Jacques Morel
Commentaire (voice)
Louis Blanche
Le juge (uncredited)
André Chanu
(uncredited)
Jo Dest
(uncredited)
Richard Flagey
(uncredited)
Arsenio Freignac
Lucas (uncredited)
Erich Frichs
(uncredited)
Gaston Garchery
(uncredited)
Pierre Goutas
(uncredited)
Hennery
Le directeur (uncredited)
André Kronefeld
(uncredited)
Yette Lucas
La deuxième concierge (uncredited)
Robert Lussac
Le directeur de la police (uncredited)
Henri Marchand
Le prêtre (uncredited)
Raoul Marco
Le docteur (uncredited)
Albert Michel
Le brigadier (uncredited)
Maryse Paillet
La première concierge (uncredited)
Nicole Rimbaud
(uncredited)
Marcel Rouzé
(uncredited)
Michel Vadet
(uncredited)
