| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Chris Penn | Gaetano "Tommy" Reina | Boot Pistol | - |
| Christian Slater | Charlie "Lucky" Luciano | Colt Police Positive | - |
| Christian Slater | Charlie "Lucky" Luciano | M1911 | - |
| Christian Slater | Charlie "Lucky" Luciano | M1921 Thompson | - |
| Costas Mandylor | Frank Costello | Remington 870 | sawed-off; anachronistic |
| Costas Mandylor | Frank Costello | Winchester Model 1897 Riot Gun | - |
| Nicholas Sadler | Vincent "Mad Dog" Coll | Colt Official Police | . |
| Nicholas Sadler | Vincent "Mad Dog" Coll | Colt 1921A Thompson | . |
| Patrick Dempsey | Meyer Lansky | Colt Detective Special | - |
| Richard Grieco | Benjamin "Bugsy" Siegel | Smith & Wesson Model 10 | - |
| Richard Grieco | Benjamin "Bugsy" Siegel | Thompson M1921 | - |
| Richard Grieco | Benjamin "Bugsy" Siegel | Remington Mark III Flare Pistol | - |
| Richard Grieco | Benjamin "Bugsy" Siegel | Remington 870 | - |
| Richard Grieco | Benjamin "Bugsy" Siegel | Rossi Overland | - |
| Christian Slater | Charlie "Lucky" Luciano | M1911-style pistols | - |
| Christian Slater | Charlie "Lucky" Luciano | Colt 1921 Thompson | - |