- Mark Stevens
- Gene Cordell aka George Manly
- Richard Widmark
- Alec Stiles
- Lloyd Nolan
- Inspector George A. Briggs
- Barbara Lawrence
- Judy Stiles
- Ed Begley
- Police Chief Bernard Harmatz
- Donald Buka
- Shivvy
- Joseph Pevney
- Matty
- John McIntire
- Cy Gordon
- Walter Greaza
- Police Lt. Paul Staller
- Howard Smith
- Commissioner Ralph Demory
- Larry Anzalone
- Sparring Partner
- George Barrows
- Bouncer at Gym
- Joan Blair
- Valentine Laval
- James J. Casino
- Cornerman
- Lane Chandler
- Policeman at Arcade
- Dick Cherney
- Man at Gym
- Noble 'Kid' Chissell
- Prisoner
- Edmund Cobb
- Desk Sergeant
- Vincent Donahue
- Cholly
- Sam Edwards
- Whitey
- Fred Fisher
- Citizen
- Bruce Gordon
- Detective in Raid
- Fred Graham
- Bank Clerk
- Joe Gray
- Boxer
- Kit Guard
- Man at Penny Arcade
- Joe Haworth
- Police Sgt. Sam Bryant
- Don Jessee
- Scar-Faced Tough
- Robert Karnes
- David Jannings
- Johnny Kern
- Fighter
- Mike Killian
- Police Sergeant
- Don Kohler
- FBI Agent Richard Atkins
- Lyle Latell
- Officer
- George Leonard
- Ticket Taker
- Jack Lomas
- Man at Gym
- Marion Marshall
- Singer
- Billy Mauch
- Mutt
- Roger McGee
- Joe
- Kitty McHugh
- Waitress
- Joe McTurk
- Fight Manager
- Lew Morphy
- Police Officer
- Robert Patten
- Robert Danker
- Phillip Pine
- Monk
- Wally Rose
- Man in Gym
- Wallace Scott
- Ring Manager
- Sammy Shack
- Hood
- Dan Sheridan
- Police Desk Sergeant
- Mickey Simpson
- Policeman at Arcade
- Randy Stuart
- Helen Jannings
- Brick Sullivan
- Policeman
- Charles Tannen
- Cab Driver
- Al Thompson
- Hotel Clerk
- Philip Van Zandt
- Bail Bondsman
- Kid Wagner
- Punch - Old Pug
- Billy Wayne
- Fight Trainer
- Robert B. Williams
- Sergeant
- Buddy Wright
- Kid Giveno
