| 角色 | 饰演者 | 角色介绍 |
| Eliot Ness (118 episodes 1959-1963) | 罗伯特·斯塔克 | |
| Narrator (118 episodes 1959-1963) | Walter Winchell | |
| Agent Enrico Rossi? (107 episodes 1959-1963) | Nicholas Georgiade | |
| Agent Lee Hobson? (86 episodes 1960-1963) | Paul Picerni | |
| Agent William Youngfellow? (78 episodes 1959-1963) | Abel Fernández | |
| Agent Jack Rossman? (65 episodes 1959-1963) | Steve London | |
| Frank Nitti (27 episodes 1959-1963) | Bruce Gordon | |
| Beecher Asbury (19 episodes 1959-1963) | Frank Wilcox | |
| Agent Martin Flaherty (16 episodes 1959-1960) | 杰瑞·帕里斯 | |
| Police Capt. Jim Johnson? (15 episodes 1961-1962) | Robert Bice | |
| Agent Cam Allison (13 episodes 1960) | Anthony George | |
| Joe Kulak? (8 episodes 1960-1962) | Oscar Beregi Jr. | |
| Frankie Resko? (8 episodes 1961-1963) | Grant Richards | |
| Capt. Dorset? (8 episodes 1960-1963) | Jason Wingreen | |
| Anthony 'Tough Tony' Lamberto? (7 episodes 1960-1962) | Frank DeKova | |
| Benny Rivas? (7 episodes 1959-1963) | Herman Rudin | |
| Brikka? (7 episodes 1959-1962) | John Duke | |
| 'Tough' Tommy Karpeles? (6 episodes 1960-1963) | Harold Stone |
