Jean-Paul Belmondo character François Merlin / Bob Saint-Clar
Jacqueline Bisset character Christine / Tatiana
Vittorio Caprioli character Georges Charron / Karpof
Hans Meyer character Colonel Collins
Monique Tarbès character Mrs. Berger
Mario David character Traffic Policeman in the Rain
Bruno Garcin character Pilu
Raymond Gérôme character General Pontaubert
Jean Lefebvre character The Electrician
Fabrizio Moresco character Student with Pipe
André Weber character The Plumber
Hubert Deschamps character Le Vendeur de Machines à Écrire
Bernard Musson character Interpreter
Thalie Frugès character Publishing House Hostess
René Barrera character The Chinese / The Bride
Rodrigo Puebla character Benson (as Rodrigo A. Puebla)
Jean-Pierre Rambal character The Lecturer
Gaëtan Noël character Doctor
Micha Bayard character Charron's Secretary
Robert Berri character (as Robert Berry)
Laure Moutoussamy character Une Amie de Charron
Michel Thomass character Le Faux Pope
Pierre Assena character Jean (uncredited)
Maurice Auzel character Mécanicien Aéroport (uncredited)
Jack Bérard character Interpreter (uncredited)
Philippe de Broca character Un Plombier (uncredited)
Henri Czarniak character (uncredited)
Raoul Guylad character The Albanian (uncredited)
Charly Koubesserian character Guard (uncredited)
Alexandre Mnouchkine character Paramedic at the Back of Ambulance (uncredited)
Louis Navarre character Intrepreter (uncredited)
José Paul character Merlin's Son (uncredited)
Jacques Wajsmark character (uncredited)