Paul Kerjean

Patrick Dewaere

Laura Weber

Anny Duperey

Holstein

Jean Mercure

Hélène Kerjean

Caroline Cellier

Michel Saint-Claude, director of GTI-Europe

Michel Auclair

Cornelius A. Woeagen

Mel Ferrer

Pierre Bayen

André Falcon

Walter, private detective

Charles Denner

Hartmann

Jean-Laurent Cochet

Madame Benoît-Lambert

Jeanne Moreau

Mr. Guérande

Fernand Ledoux

Dr. Gerhard Kramer

Claude Vernier

Madame Bronsky

Édith Scob

l'informateur

Jean-Pierre Kalfon

Fred Great

Jacques François

Jacques Benoît-Lambert, aka 'JBL'

Robert Party

la sécretaire de Kerjean

Claude Marcault

Jack Sleiter, director of GTI

Jacques Maury

Arlène Robert

Jacqueline Doyen

Sylvestre

Marc Eyraud

Vittorio Orta, Director of GTI-Italy

Jean Claudio

Accuser

Anthony Stuart

Kurt von Schroeder

Hans Verner

GTI controller

Edward Marcus

French interpreter in court

Pierre Londiche

Bastien Kerjean

Camille Clavel

Ralph von Lübeck

Edmond Bernard

Concierge

Frédérique Meininger

Hotel receptionist

François Viaur

Madame Benoît-Lambert's maid

Marie-Pierre Casey

Police commissioner

Jacques David

Enthusiastic reader

Marc Fayolle

Suta Burishawa

Yaseen Khan

Secretary of the Walter agency

Marie-Christine Rolland

Germaine Guérande (uncredited)

Yvonne Dany

Éric Bronsky (uncredited)

Rachid Ferrache

Madame Bayen (uncredited)

Sacha Lavin

Madame Holstein (uncredited)

Fabienne Mai