Michael Caine as John Deray / John Davos

Anthony Quinn as Steve Ventura

James Mason as Jacques Brizard

Maurice Ronet as Inspector Briac

Alexandra Stewart as Rita

Maureen Kerwin as Lucienne

Catherine Rouvel as Brizard's Mistress

Marcel Bozzuffi as Calmet

Patrick Floersheim as Kovakian

André Oumansky as Marsac

Georges Beller as Minierini

Jean-Louis Fortuit as Fortuit

Jerry Brouer as Kurt

Georges Lycan as Henri

Pierre Koulak as Wilson

Hella Petri as The Countess

Vernon Dobtcheff as Lazar

Gib Grossac as Fournier

Barbara Sommers as Sally

Martine Kelly as Janet

Dyanik Zurakowska as The Girl