- Jean-Paul Belmondo
- Bob Saint-Clar / François Merlin
- Jacqueline Bisset
- Tatiana / Christine
- Vittorio Caprioli
- Karpof / Charron
- 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
- Typewriters seller
- Bernard Musson
- Interpreter
- 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
- Robert Berri
- (as Robert Berry)
- Laure Moutoussamy
- a friend of Charron's
- Michel Thomass
- Fake pope
- Pierre Assena
- Jean
- Maurice Auzel
- Airport mechanic
- Jack Berard
- Interpreter
- Philippe de Broca
- Second plumber
- Henri Czarniak
- (uncredited)
- Raoul Guylad
- The Albanian
- Charly Koubesserian
- Guard
- Alexandre Mnouchkine
- Paramedic at the Back of Ambulance
- Louis Navarre
- Intrepreter
- José Paul
- Merlin's son
- Jacques Wajsmark
- (uncredited)
