Cast
Patrick Dewaere
Paul Kerjean
Michel Auclair
Michel Saint-Claude, director of GTI-Europe
Caroline Cellier
Hélène Kerjean
Charles Denner
Walter, private detective
Anny Duperey
Laura Weber, JBL's mistress
Jeanne Moreau
Madame Benoît-Lambert
Mel Ferrer
Cornelius A. Woaegen, president of GTI
Jean-Laurent Cochet
Serge Hartmann, director of La Tribune
Fernand Ledoux
Mr. Guérande
André Falcon
Pierre Bayen, editor-in-chief
Claude Vernier
Dr. Gerhard Kramer
Édith Scob
Madame Bronsky
Jacques François
Fred Great
Robert Party
Jacques Benoît-Lambert, aka 'JBL'
Jean-Pierre Kalfon
Bronsky, then Stan Hankins, the informant
