| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Carl Studer | Kern | M1911A1 | - |
| Daniel Crohem | Inspector Salignari | Unique Rr 51 | - |
| Jean Desailly | Commissaire Clain | FN Model 1922 | - |
| Jean-Paul Belmondo | Silien | Colt Army Special | 3" barrel |
| Jean-Paul Belmondo | Silien | Walther P38 | - |
| Philippe Nahon | Rémy | FN Model 1922 | - |
| Serge Reggiani | Maurice Faugel | Colt Army Special | 3" barrel |
| Serge Reggiani | Maurice Faugel | FN Model 1922 | - |