Jean-Claude Brialy as Antoine Monteil

Françoise Dorléac as Françoise Bicart alias Sandra Rossen

Claude Rich as Julien

Jean-Paul Belmondo as Fernand

Marie Laforêt as Gisèle

Marie Dubois as Sophie

Catherine Deneuve as Denise

Hélène Duc as Madame Armande

Bernadette Lafont as Flora

Bernard Blier as M. Heurtin

Francis Blanche as Nino Papatakis

Micheline Presle as Isabelle Lartois

Michel Serrault as Gaston Lartois

Jacqueline Mille as la soeur de Gisèle

Tanya Lopert as Mauricette

Mireille Darc as Georgina

Jacques Dynam as un truand

Noël Roquevert as Le beau-père

Jean-Luc Adler as Un invité au mariage (uncredited)

Henri Attal as Un truand (uncredited)

Maurice Auzel as Le barman (uncredited)

Arlette Balkis as (uncredited)

Robert Blome as (uncredited)

Nicole Desailly as (uncredited)

Sabine Sun as (uncredited)

Adrien Cayla-Legrand as L'invité chez Walter (uncredited)

Albert Daumergue as Le père de Gisèle (uncredited)

Bernard Meusnier as Le copain de Sophie (uncredited)

Édouard Molinaro as L'amoureux sur le bateau (uncredited)

Bernard Murat as (uncredited)

Dominique Page as (uncredited)

Yvon Sarray as Le père de Sophie (uncredited)

Michel Thomass as Le restaurateur grec (uncredited)

Patrick Thévenon as Hubert (uncredited)

Dominique Zardi as Un truand (uncredited)

Jean Sylvain as Le garçon de café (uncredited)