Jean-Paul Belmondo
Role: François Merlin / Bob Saint-Clar
Jacqueline Bisset
Role: Christine / Tatiana
Vittorio Caprioli
Role: Georges Charron / Colonel Karpov
Hans Meyer
Role: Colonel Collins
Monique Tarbès
Role: Mrs. Berger
Mario David
Role: Traffic policeman in the rain
Raymond Gérôme
Role: General Pontaubert
Jean Lefebvre
Role: The Electrician
Fabrizio Moresco
Role: Student with Pipe
André Weber
Role: The Plumber
Hubert Deschamps
Role: Typewriter Seller
Bernard Musson
Role: The French Interpreter who speaks Czech
Thalie Frugès
Role: Publishing House Hostess
René Barrera
Role: The Chinese / The Bride
Rodrigo Puebla
Role: Benson
Jean-Pierre Rambal
Role: The Lecturer
Micha Bayard
Role: Charron's Secretary
Roger Muni
Role: The Doctor at the Airport
Max Desrau
Role: The Albanian Interpreter who speaks Romanian
Robert Berri
Role: The Commander
Lucienne Legrand
Role: Woman
Sébastien Floche
Role: The Serbian Interpreter who speaks Russian
Laure Moutoussamy
Role: Charron's Friend
Michel Thomass
Role: Fake Pope
Pierre Assena
Role: Jean (uncredited)
Maurice Auzel
Role: Airport Mechanic (uncredited)
Jack Bérard
Role: The Russian Interpreter who speaks Czech (uncredited)
Philippe de Broca
Role: Second Plumber (uncredited)
Henri Czarniak
Role: Soldier (uncredited)
Raoul Guylad
Role: The Albanian (uncredited)
Charly Koubesserian
Role: Guard (uncredited)
Alexandre Mnouchkine
Role: Paramedic at the back of Ambulance (uncredited)
Louis Navarre
Role: The Romanian Interpreter who speaks Serbian (uncredited)
José Paul
Role: Merlin's Son (uncredited)
Jacques Wajsmark
Role: Minor Role (uncredited)