Jean-Paul Belmondo

François Capella

Alain Delon

Roch Siffredi

Catherine Rouvel

Lola

Françoise Christophe

Simone Escarguel

Corinne Marchand

Mrs. Rinaldi

Laura Adani

Mrs. Siffredi, Roch's mother

Nicole Calfan

Ginette

Hélène Rémy

Lydia

Odette Piquet

Singer

Mario David

Mario

Lionel Vitrant

Fernand

Dennis Berry

Nono

Jean Aron

Martial Roger, accountant

André Bollet

Poli

Arnoldo Foà

Marello

Daniel Ivernel

Commissioner

Christian de Tillière

'Le Danseur'

Julien Guiomar

Simon Boccace

Michel Bouquet

Maître Rinaldi

Pierre Koulak

Spada

Yvan Chiffre

Henri Attal

Cashier of the circle (uncredited)

Philippe Castelli

Hotel boy (uncredited)

Mireille Darc

Prostitute (uncredited)

Pierre Santino

Machine pistol shooter (uncredited)

Art Simmons

Pianist (uncredited)

Roland Malet

Player (uncredited)

Georges Ass

Priest at the funeral (uncredited)

Jean-François Delon

Brothel employee (uncredited)

Fransined

Coffee boy (uncredited)

Iska Khan

Chinese server (uncredited)

Georges Guéret

Man of Marello (uncredited)

Tony Rödel

Man of Marello (uncredited)