- Gabriel Dell - T.B.
- Bernard Punsly - Milt
- Robert Gleckler - Doc Ward (Johnnie's Manager)
- John Ridgely - Charles 'Charlie' Magee (Reporter)
- Barbara Pepper - Budgie Massey
- William B. Davidson - Ennis
- Ward Bond - Lenihan
- Robert Strange - Malvin
- Louis Jean Heydt - Randy Smith
- Frank Riggi - Gaspar Rutchek
- Cliff Clark - Manager
- Dick Wessel - Collucci
- Sam Hayes - Fight Announcer
- Jack Austin - Cop #1 (uncredited)
- Irving Bacon - Gas Station Attendant (uncredited)
- Clem Bevans - Ticket Taker (uncredited)
- Richard Bond - Reporter at First Fight (uncredited)
- Edwin Brian - Newsboy (uncredited)
- Raymond Brown - Sheriff (uncredited)
- Mushy Callahan - Schwimmer (uncredited)
- Nat Carr - Haskell - Reporter at First Fight (uncredited)
- Eddy Chandler - Detective #2 (uncredited)
- Georgie Cooper - Elderly Lady (uncredited)
- Hal Craig - Detective #3 (uncredited)
- Joe Cunningham - Columnist (uncredited)
- John Dilson - Doctor (uncredited)
- Mike Donovan - Policeman (uncredited)
- Tom Dugan - Man Behind Grandma (uncredited)
- John Harron - First Fight Radio Announcer (uncredited)
- Leyland Hodgson - Mr. Williamson (uncredited)
- Stuart Holmes - Second Fight Timekeeper (uncredited)
- Arthur Housman - Drunk Next to Grandma (uncredited)
- Donald Kerr - Man in Ring After First Fight (uncredited)
- Reid Kilpatrick - Radio Sports Commentator (voice) (uncredited)
- Harry Leroy - Spectator at Second Fight (uncredited)
- Al Lloyd - Man in Front of Spit (uncredited)
- Doris Lloyd - Mrs. Williamson (uncredited)
- Frank Mayo - Man at First Fight with Tophat (uncredited)
- Sam McDaniel - Splash (uncredited)
- Larry McGrath - Second Fight Referee (uncredited)
- Frank Meredith - Cop #2 (uncredited)
- Jack Mower - Man in Locker Room After First Fight (uncredited)
- Jimmy O'Gatty - Rutchek's Handler (uncredited)
- Paul Panzer - Jim - Assistant Ticket Taker (uncredited)
- Bob Perry - Cawley - Jack's Handler (uncredited)
- Charles Randolph - First Fight Referee (uncredited)
- John J. Richardson - Reporter (uncredited)
- Cyril Ring - First Fight Ringsider (uncredited)
- Bert Roach - Hendricks (uncredited)
- Dave Roberts - Police Announcer (voice) (uncredited)
- Sally Sage - Girl Entering Locker Room (uncredited)
- Cliff Saum - Man in Front of Tommy (uncredited)
- Janet Shaw - Girl Entering Locker Room (uncredited)
- John Sheehan - Man in Front of Grandma (uncredited)
- Ronald Sinclair - J. Douglas Williamson (uncredited)
- Charles Sullivan - Second Fight Trainer (uncredited)
- Elliott Sullivan - Mel - Hoodlum Stealing $50 (uncredited)
- Dorothy Varden - Minor Role (uncredited)
- Tom Wilson - Kid Tacoma (uncredited)
- Jack Wise - Second Fight Ticket Seller (uncredited)
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Seth Michael Donsky
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Adrian Agramonte, John Hochroth, Bernard Arbit, Seth Michael Donsky
Capítulo disponible en las siguientes plataformas:
