 | Jean-Paul Belmondo als François Merlin / Bob Saint-Clar |
 | Jacqueline Bisset als Christine / Tatiana |
 | Vittorio Caprioli als Georges Charron / Karpof |
 | Hans Meyer als Colonel Collins |
 | Monique Tarbès als Mrs. Berger |
 | Mario David als Traffic Policeman in the Rain |
 | Bruno Garcin als Pilu |
 | Raymond Gérôme als General Pontaubert |
 | Jean Lefebvre als The Electrician |
 | Fabrizio Moresco als Student with Pipe |
 | André Weber als The Plumber |
 | Hubert Deschamps als Le Vendeur de Machines à Écrire |
 | Bernard Musson als Interpreter |
 | Thalie Frugès als Publishing House Hostess |
| René Barrera als The Chinese / The Bride |
| Rodrigo Puebla als Benson |
 | Jean-Pierre Rambal als The Lecturer |
| Gaëtan Noël als Doctor |
 | Micha Bayard als Charron's Secretary |
 | Roger Muni |
| Victor Jarson |
| Caline Bautte |
| Claude Salino |
| Jean-Paul Jarre |
 | Max Desrau |
 | Robert Berri |
 | Lucienne Legrand |
| Guy Simonnet |
 | Sébastien Floche |
 | Laure Moutoussamy als Une Amie de Charron |
 | Michel Thomass als Le Faux Pope |
| Pierre Assena als Jean (uncredited) |
 | Maurice Auzel als Mécanicien Aéroport (uncredited) |
 | Jack Bérard als Interpreter (uncredited) |
 | Philippe de Broca als Un Plombier (uncredited) |
 | Henri Czarniak als (uncredited) |
 | Raoul Guylad als The Albanian (uncredited) |
 | Charly Koubesserian als Guard (uncredited) |
 | Alexandre Mnouchkine als Paramedic at the Back of Ambulance (uncredited) |
 | Louis Navarre als Intrepreter (uncredited) |
 | José Paul als Merlin's Son (uncredited) |
| Jacques Wajsmark als (uncredited) |
| Vittorio Caprioli | Writer |
| Philippe de Broca | Director |
| Philippe de Broca | Writer |
| Jean-Paul Rappeneau | Writer |
| Francis Veber | Writer |
| Robert Amon | Associate Producer |
| Georges Dancigers | Producer |
| Henri Lanoë | Editor |
| René Mathelin | Director of Photography |
| Alexandre Mnouchkine | Producer |
| Claude Bolling | Music |
| Jean-Paul Belmondo | Producer |
| Ennio Nobili | Co-Producer |
| François de Lamothe | Art Direction |
| Robert Christidès | Set Decoration |
| Marc Blanchard | Key Hair Stylist |
| Charly Koubesserian | Key Makeup Artist |
| Alain Belmondo | Production Manager |
| Alain Pancrazi | Unit Manager |
| Tony Aboyantz | Assistant Director |
| Claude Gorsky | Assistant Director |
| Jesús Marín | Assistant Director |
| Jacques Brizzio | Assistant Decorator |
| Pierre Duquesne | Assistant Decorator |
| Jean Labussière | Sound Engineer |
| Jean Nény | Sound Engineer |
| Georges Laconelli | Special Effects |
| León Ortega | Special Effects |
| André Pierdel | Special Effects |
| Dan Vieru | Stunts |
| Jean-Paul Belmondo | Stunts |
| Philippe Bordas | Assistant Camera |
| Maurice Chapiron | Still Photographer |
| Jean-Paul Cornu | Assistant Camera |
| Jean-Paul Schwartz | Camera Operator |
| Monique André | Assistant Editor |
| Catherine Dubeau | Assistant Editor |
| Carlo Savina | Conductor |
| Suzanne Durrenberger | Script Supervisor |
| René Chateau | Publicist |
| Elisabeth Manet-Schwatz | Production Secretary |
| Janine Ruault | Administration |
| Armando Solís | Administration |
| Louis Trinoner | Administration |
