| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Bud Spencer | "Flatfoot" Rizzo | Lee-Enfield Mk.I | - |
| Claudio Ruffini | A gangster | Snub nose revolver | - |
| Enzo Cannavale | Caputo | Lee-Enfield Mk.I | - |
| Giancarlo Bastianoni | Smollet's henchman | Webley .38 Mk IV | - |
| Giancarlo Bastianoni | Smollet's henchman | Pocket pistol | Suppressed |
| Giovanni Cianfriglia | A Naples thug | Colt Detective Special | 3rd Gen |
| Werner Pochath | Spiros | Webley .38 Mk IV | - |
| Werner Pochath | Spiros | Colt Detective Special | 3rd Gen. |
| Werner Pochath | Spiros | Lee-Enfield Mk.I | - |