| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Antonio Casale | El Greco | Lupara | - |
| Antonio Casale | El Greco | Beretta M1951 | - |
| Benito Pacifico | El Greco's henchman | Riva Esterina Dobermann | - |
| Biagio Pelligra | Calabrese | Walther P38 | - |
| Biagio Pelligra | Calabrese | Lupara | - |
| Claudio Cassinelli | Commissioner Sarti | Beretta M1951 | - |
| Claudio Cassinelli | Commissioner Sarti | Carcano M91/24 | With rifle grenade launcher |
| Claudio Undari | Mario | Riva Esterina Dobermann | - |
| Claudio Undari | Mario | Beretta M12 | - |
| Giuseppe Castellano | Vallelunga | Riva Esterina Dobermann | - |
| Henry Silva | Brescianelli | Walther P38 | With black Bakelite plastic grips |
| Rosario Borelli | Brescianelli's henchman | Beretta M1951 | - |
| Salvatore Billa | El Greco's henchman | Walther P38 | - |
| Tomás Milián | Sergio Marazzi | Llama Comanche | - |
| Tomás Milián | Sergio Marazzi | Beretta M1951 | - |