Michel Auclair
Michel Saint-Claude, director of GTI-Europe
Charles Denner
Walter, private detective
Anny Duperey
Laura Weber, JBL's mistress
Mel Ferrer
Cornelius A. Woaegen, president of GTI
Jean-Laurent Cochet
Serge Hartmann, director of La Tribune
André Falcon
Pierre Bayen, editor-in-chief
Robert Party
Jacques Benoît-Lambert, aka 'JBL'
Jean-Pierre Kalfon
Bronsky, then Stan Hankins, the informant
Jean Mercure
Joachim Holstein, Director of GTI-Austria
Jacques Maury
Jack Sleiter, director of GTI
Jean Claudio
Vittorio Orta, Director of GTI-Italy
Pierre Londiche
French interpreter in court
Marie-Pierre Casey
Madame Benoît-Lambert's maid
Marie-Christine Rolland
Secretary of the Walter agency
Yvonne Dany
Germaine Guérande (uncredited)
Rachid Ferrache
Éric Bronsky (uncredited)
Sacha Lavin
Madame Bayen (uncredited)
Fabienne Mai
Madame Holstein (uncredited)
Bernard Tachl
The follower (uncredited)
