Jacques Deray Director, Writer Jean-Louis Trintignant Lucien Bellon Actor Ann-Margret Nancy Robson Actor Angie Dickinson Jackie Kovacs Actor Roy Scheider Lenny Actor Georgia Engel Mrs. Barnes Actor Felice Orlandi Anderson Actor Carlo De Mejo Karl Actor Michel Constantin Antoine Actor Jean-Claude Carrière Writer Jacques Bar Producer Charles Burr Original Music Michel Legrand Original Music Silvano Ippoliti Cinematographer Terry K. Meade Cinematographer William K. Chulack Film Editing Henri Lanoë Film Editing