| 角色 | 饰演者 | 角色介绍 |
| Al Capone | 罗德·斯泰格尔 | |
| Maureen Flannery | 菲伊·斯潘 | |
| Schaefler (narrator) | James Gregory | |
| Mac Keeley reporter | 马丁·鲍尔萨姆 | |
| Johnny Torrio | Nehemiah Persoff | |
| Bugs Moran | Murvyn Vye | |
| Dion O'Banion | Robert Gist | |
| Earl Weiss | Lewis Charles | |
| Big Jim Colosimo | Joe De Santis | |
| Bones Corelli | Sandy Kenyon | |
| Lawyer Brancato | Raymond Bailey | |
| Tony Genaro | Al Ruscio | |
| Joe Lorenzo | Louis Quinn | |
| John Scalisi | Ron Soble | |
| Albert Anselmi | Steve Gravers | |
| Ben Hoffman | Ben Ari | |
| Spectator (uncredited) | Fred Aldrich | |
| Nurse (uncredited) | Cindy Ames | |
| Reporter (uncredited) | James Bacon | |
| Convict in Yard at Alcatraz (uncredited) | Ralph Brooks | |
| Police Inspector (uncredited) | Paul Bryar | |
| Ad Lib Man (uncredited) | Charles D. Campbell | |
| Mrs. Schaefer (uncredited) | Cappy Carey | |
| Vincent (uncredited) | Larry Chance | |
| Man (uncredited) | Robert Christopher | |
| Plainclothesman (uncredited) | John Close | |
| Tailor (uncredited) | Mason Curry | |
| Pete Flannery (uncredited) | Peter Dane | |
| Hood (uncredited) | Bru Danger | |
| Speakeasy Extra (uncredited) | James Dime | |
| Detective (uncredited) | Craig Duncan |
