| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Domenico Di Costanzo | Leonardi's bodyguard | Beretta M1951 | - |
| Loris Bazzocchi | Pasquale | Beretta M1951 | - |
| Martin Balsam | The police commissioner | Beretta M1951 | - |
| Martin Balsam | The police commissioner | Sam Yang Air Rifle | - |
| Massimo Ranieri | Angelo | Bolt action sniper rifle | - |
| Massimo Ranieri | Angelo | Sam Yang Air Rifle | - |
| Rosario Borelli | Gallo's henchman | Walther P38 | - |
| Rosario Borelli | Gallo's henchman | Smith & Wesson Military & Police | - |
| Sal Borgese | Vincent | Walther P38 | - |
| Tommaso Palladino | Gallo's henchman | Beretta M1951 | - |
| Yul Brynner | Peter Marciani | Beretta M1951 | - |
| Yul Brynner | Peter Marciani | Bolt-action sniper rifle | Two different models |
| Yul Brynner | Peter Marciani | M1 Carbine | With sniper scope |