| Person | Type | Job | Role(s) |
|---|---|---|---|
 Albert Jurgenson | Crew | Editing | Editor |
 Claude Sautet | Crew | Directing | Director, Adaptation |
 Georges Delerue | Crew | Sound | Original Music Composer |
 Ghislain Cloquet | Crew | Camera | Director of Photography |
Jacques Lebreton | Crew | Sound | Sound Editor |
Jean Darvey | Crew | Production | Producer |
 José Giovanni | Crew | Writing | Novel, Adaptation, Dialogue |
 Pascal Jardin | Crew | Writing | Adaptation |
Rino Mondellini | Crew | Art | Production Design |
Robert Amon | Crew | Production | Executive Producer |
Billy Bonnard | Crew | Costume & Make-Up | Makeup Artist |
 Bernard Dhéran | Cast | Actor | Blastone (uncredited) |
 Betty Schneider | Cast | Actress | Little maid |
 Charles Blavette | Cast | Actor | Mr. Bénazet |
 Claude Cerval | Cast | Actor | Raoul Fargier |
 Corrado Guarducci | Cast | Actor | Ferucci |
 Evelyne Ker | Cast | Actress | Gibelin's daughter |
 France Asselin | Cast | Actress | Denise Vintran |
 Guy Henry | Cast | Actor | Inspector (uncredited) |
 Jacques Dacqmine | Cast | Actor | Commissioner Blot |
 Jean-Paul Belmondo | Cast | Actor | Eric Stark |
 Jean-Pierre Zola | Cast | Actor | Boss of the private agency |
 Jeanne Pérez | Cast | Actress | Jacqueline Chapuis |
 Laure Paillette | Cast | Actress | Elevator lady (uncredited) |
 Lino Ventura | Cast | Actor | Abel Davos |
 Marcel Bernier | Cast | Actor | Inspector (uncredited) |
 Marcel Dalio | Cast | Actor | Arthur Gibelin |
 Marcel Gassouk | Cast | Actor | Man at the post office in Nice (uncredited) |
 Max Amyl | Cast | Actor | Stage director (uncredited) |
 Michel Ardan | Cast | Actor | Henri Vintran, aka Riton |
 Michèle Méritz | Cast | Actress | Sophie Fargier |
 Philippe March | Cast | Actor | Jean Martin |
 René Génin | Cast | Actor | Mr. Chapuis |
 Robert Desnoux | Cast | Actor | Pierrot Davos |
 Sandra Milo | Cast | Actress | Liliane |
 Simone Desmaison | Cast | Actress | Thérèse Davos |
 Stan Krol | Cast | Actor | Raymond Naldi |
 Sylvain Lévignac | Cast | Actor | Detective of the private agency |
Thierry Lavoye | Cast | Actor | Daniel Davos |
Albert Daumergue | Cast | Actor | Man at Riton (uncredited) |
 Jean Combal | Cast | Actor | Policeman of Nice (uncredited) |
Lucien Desagneaux | Cast | Actor | Pool player (uncredited) |
| Person | Type | Job | Role(s) |
