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