Lino Ventura
Role: Alphonse Maréchal aka 'Le Malin'
Charles Aznavour
Role: Edmond Clancul aka 'Le Naïf'
Irina Demick
Role: Catherine Verdier, manager of an art gallery
Maurice Biraud
Role: Arthur aka 'Le Mou'
Georges Géret
Role: Joseph Rouquemoute aka 'Le Rouquin'
Pierre Brasseur
Role: Demuldère aka 'Tonton le Brocanteur', receiver
Françoise Rosay
Role: Gertrude, supplies specialist in the mafia
Annie Fratellini
Role: Léone Rouqemoute, prostitute
Norman Bart
Role: Gallery visitor
Georges Blaness
Role: Omar
Dorothée Blanck
Role: Girl at the hotel particulier
Marcel Charvey
Role: Gallery visitor
François Dalou
Role: Police inspector
Michel Dacquin
Role: Nightclub bartender
Marie-Hélène Dasté
Role: Madame Clancul
Michel Duplaix
Role: Head waiter
Michel Garland
Role: Gallery visitor
Jacques Marchand
Role: Gallery visitor
François Mirante
Role: Police inspector
Donald O'Brien
Role: Gallery visitor
Renée Passeur
Role: Friend of Léone
André Thorent
Role: Gangster client of the cabaret
Patricia Scott
Role: Elisabeth
François Valorbe
Role: Employee of the employment agency
Daniel Ceccaldi
Role: Police inspector Lescure
Georges Chamarat
Role: Edmond Clancul
Jean-Pierre Caussade
Role:
Marc Arian
Role: Demuldère's servant (uncredited)
Arlette Balkis
Role: Worshiper of the oriental god (uncredited)
Jean Carmet
Role: Effeminate art critic (uncredited)
Marcel Bernier
Role: Friend of Alphonse (uncredited)
Albert Daumergue
Role: Extra (uncredited)
Agnès Duval
Role: (uncredited)
Marius Gaidon
Role: Extra (uncredited)
Guy Henry
Role: (uncredited)
Roger Lecuyer
Role: Passerby looking in the shop window (uncredited)
Laure Paillette
Role: Woman at the window (uncredited)
Paul Pavel
Role: Cabaret customer (uncredited)
Émile Riandreys
Role: Employee of the employment agency (uncredited)
André Rouyer
Role: Cabaret customer (uncredited)
Dominique Zardi
Role: Prisoner (uncredited)