Le Doulos

Jean-Paul Belmondo

Silien

Serge Reggiani

Maurice Faugel

Jean Desailly

Superintendant Clain

René Lefèvre

Gilbert Varnove

Marcel Cuvelier

Police inspector

Philippe March

Jean

Fabienne Dali

Fabienne

Monique Hennessy

Thérèse

Carl Studer

Kern

Christian Lude

Doctor

Jacques De Leon

Armand

Jacques Léonard

Police inspector

Philippe Nahon

Remy

Charles Bayard

Old Man

Paulette Breil

Anita

Michel Piccoli

Nuttheccio

Charles Bouillaud

Barman

Daniel Crohem

Inspector Salignari

Andrès

Butler (uncredited)

Robert Blome

Barman (uncredited)