Brelan d'as

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)

René Moulaert

Production design

André Germain

Henri Verneuil

Director

Gabriel Rongier

Editor

Julien Rivière

Jules Calamy

Producer

Raymond Froment

Producer

Hans May

Jacques Lebreton

Georges Simenon

Stanislas-André Steeman

Writer

Peter Cheyney

Writer

Jacques Companéez

Writer