Directed by
| Jean Becker | ||
Writing Credits (in alphabetical order)
| Jean Becker | ... | (adaptation) |
| José Giovanni | ... | (dialogue) |
| José Giovanni | ... | (novel) |
Cast (in credits order) complete, awaiting verification
 | Jean-Paul Belmondo | Roberto La Rocca | |
 | Christine Kaufmann | Geneviève Adé | |
 | Béatrice Altariba | Maud | |
 | Mario David | Charlot l'élégant | |
 | Henri Virlojeux | Ficelle (as Henri Virlogeux) | |
| Jean Gras | ||
 | Michel Constantin | Le chef des racketteurs américains | |
 | Jean-Pierre Darras | Névada | |
| Jacques Léonard | (as Jack Léonard) | |
| Jean-Louis Marest | ||
| Charles Moulin | Cipriano | |
 | Claude Piéplu | Le directeur de la prison (as Claude Pieplu) | |
| Pedro Serano | Migli | |
 | Nico | ||
| Frédéric Lambre | Fanfan | |
| Edmond Beauchamp | ||
 | Pierre Vaneck | Xavier Adé | |
| Rest of cast listed alphabetically: | |||
| Henri Arius | ||
| Claude Jaeger | Fernand, l'italien | |
| Pierre Mirat | ||
| Maurice Auzel | Prisonnier (uncredited) | |
| Mick Besson | Un détenu (uncredited) | |
| Adrien Cayla-Legrand | Albert, un surveillant du réfectoire (uncredited) | |
| André Chaumeau | Le surveillant du réfectoire (uncredited) | |
| Leroy Haynes | Racketteur (uncredited) | |
 | Monique Hennessy | Une prostituee (uncredited) | |
| Gérard Hernandez | Un prisonnier démineur (uncredited) | |
| Giovanni Père | (uncredited) | |
 | Jacques Rispal | (uncredited) | |
 | Dominique Zardi | Un prisonnier démineur (uncredited) | |
Produced by
| Adry De Carbuccia | ... | producer |
| Roland Girard | ... | producer |
| Janine Solomons | ... | line producer |
| René Gaston Vuattoux | ... | executive producer (as René G. Vuattoux) |
Music by
| Claude Normand | ||
Cinematography by
| Ghislain Cloquet | ||
Film Editing by
| Denise de Casabianca | ||
Set Decoration by
| Maurice Petri | ||
Makeup Department
| Marcel Bordenave | ... | makeup artist |
Production Management
| Marcel Correnson | ... | unit manager |
| Philippe Dubail | ... | unit manager |
| Alain Quefféléan | ... | unit manager (as Alain Queffelean) |
Second Unit Director or Assistant Director
| Claude Othnin-Girard | ... | second assistant director |
| Serge Witta | ... | first assistant director |
Art Department
| Guy Maugin | ... | set dresser |
| Jacques Mély | ... | assistant art director |
Sound Department
| Jean Chaye | ... | assistant sound editor |
| André Hervée | ... | sound |
Camera and Electrical Department
| Étienne Becker | ... | assistant camera |
| Pierre Lhomme | ... | camera operator |
| Emmanuel Machuel | ... | assistant camera |
| Alain Sauvan | ... | still photographer |
Editorial Department
| Janine Oudoul | ... | assistant editor |
Music Department
| Gérard Lévecque | ... | music arranger |
Script and Continuity Department
| Madeleine Lefèvre | ... | script girl |
Additional Crew
| Yvonne Toumayeff | ... | administrator |