- Robert P. Lieb - D. A. Hogan
- Theodore Newton - Edward Eagan
- Steve McQueen - Fidel (uncredited)
- Stanley Adams - Romolo's Attorney (uncredited)
- Fred Aldrich - Ringside Photographer (uncredited)
- Leon Alton - Fight Spectator (uncredited)
- William Boyett - Military Policeman (uncredited)
- Bart Braverman - Boy (uncredited)
- John Breen - Hearing Specatator (uncredited)
- Frank Campanella - Detective (uncredited)
- Walter Cartier - Polack (uncredited)
- Angela Cartwright - Audrey at Age 3 (uncredited)
- George Cisar - Fence (uncredited)
- Russ Clark - Zale Fight Referee (uncredited)
- Tom Coleman - Reporter at Sparring Session (uncredited)
- Russ Conway - Captain Grifton (uncredited)
- Gene Coogan - Bookie (uncredited)
- Clancy Cooper - Captain Lancheck (uncredited)
- Matt Crowley - Lou Stillman (uncredited)
- Michael Dante - Shorty (uncredited)
- Ray Danton - Reporter (voice) (uncredited)
- James Dime - Training Spectator (uncredited)
- Robert Easton - Corporal Quinbury (uncredited)
- John Eldredge - George Niles (uncredited)
- Joe Garcio - Radio Listener (uncredited)
- Robert Gardett - Reporter (uncredited)
- Tommy Garland - Referee (uncredited)
- Sam Gilman - Detective Arresting Rocky (uncredited)
- James Gonzalez - Trial Spectator (uncredited)
- Herschel Graham - Fight Spectator (uncredited)
- Donna Jo Gribble - Yolanda Barbella (uncredited)
- Kit Guard - Fight Spectator (uncredited)
- Don Haggerty - Prison Guard (uncredited)
- Bern Hoffman - Fat Man at Hijacking Attempt (uncredited)
- Allen Jaffe - Radio Listener (uncredited)
- Dean Jones - Private in Rocky's Tent (uncredited)
- Byron Kane - Reporter (uncredited)
- Jackie Kelk - George (uncredited)
- Kenner G. Kemp - Commissioner's Assistant (uncredited)
- Jack Kenney - Reformatory Guard (uncredited)
- Jess Kirkpatrick - Chicago Reporter (uncredited)
- Richard LaMarr - Fight Spectator (uncredited)
- David Leonard - Mr. Mueller (uncredited)
- Len Lesser - Reporter at Sparring Session (uncredited)
- Robert Loggia - Frankie Peppo (uncredited)
- Jack Lomas - Reformatory Guard (uncredited)
- Wilbur Mack - Fight Spectator (uncredited)
- Philo McCullough - Fight Spectator (uncredited)
- Frank McLure - Fight Spectator (uncredited)
- Joseph Marr - Customer (uncredited)
- Gregg Martell - Guard (uncredited)
- Joe McGuinn - Guard (uncredited)
- Tyler McVey - Reporter (uncredited)
- Tony Michaels - Assistant Commissioner (uncredited)
- Billy Nelson - Commissioner (uncredited)
- Frank Mills - Counterman at Gym (uncredited)
- Robin Morse - Reporter at Hearing (uncredited)
- Sol Murgi - Fight Spectator (uncredited)
- Monty O'Grady - Fight Spectator (uncredited)
- Ralph Neff - Spectator (uncredited)
- Jimmy Murphy - Young Fighter at Gym (uncredited)
- James O'Rear - Judge (uncredited)
- Jack Orrison - Detective (uncredited)
- Jack Perry - Man in Bar (uncredited)
- Judson Pratt - Johnny Hyland (uncredited)
- Terry Rangno - Rocky at Age 8 (uncredited)
- Sid Raymond - Subway Guard (uncredited)
- Michael Ross - Subway Guard (uncredited)
- Ralph Reed - Soldier (uncredited)
- Dick Rich - Geezer (uncredited)
- Christopher Riordan - Rocky's Friend (uncredited)
- Benny Rubin - Fight Promoter (uncredited)
- Eddie Ryder - Prisoner (uncredited)
- Wayne Taylor - Prisoner (uncredited)
- Willard Sage - Earl Woodhope (uncredited)
- Scott Seaton - Elevator Passenger (uncredited)
- Jack Shea - Prison Guard (uncredited)
- Don Shelton - Captain at Court Martial (uncredited)
- Court Shepard - Tony Zale (uncredited)
- Al Silvani - Rocky's Second (uncredited)
- Buster Slaven - Sidekick (uncredited)
- Bert Stevens - Fight Spectator (uncredited)
- Ray Stricklyn - Bryson (uncredited)
- James Todd - Colonel at Court Martial (uncredited)
- Renata Vanni - (uncredited)
- Ray Walker - Zale Ring Announcer (uncredited)
- Bob Whitney - Hearing Specatator (uncredited)
- Billy Wilson - Commissioner (uncredited)
- Anne Caprile - Norma (french voice)
- Robert Wise
- Rocky Graziano
-
Charles Schnee
- Miklós Rózsa
- Bronislau Kaper
- Johnny Green
Paul Newman interpreta a Rocky Graziano en la película.
Pier Angeli hace el papel de Norma Graziano.
Everett Sloane interpreta a Irving Cohen en la película.
Eileen Heckart interpreta a Ma Barbella en la película.
Sal Mineo interpreta a Romolo en la película.
Harold J. Stone interpreta a Nick Barbella en la película.
Joseph Buloff interpreta a Benny en la película.
Arch Johnson interpreta a Heldon en la película.
Sammy White interpreta a Whitey Bimstein en la película.
Robert P. Lieb hace el papel de D. A. Hogan.
Theodore Newton hace el papel de Edward Eagan.
Steve McQueen interpreta a Fidel (uncredited) en la película.
Stanley Adams interpreta a Romolo's Attorney (uncredited) en la película.
Fred Aldrich hace el papel de Ringside Photographer (uncredited).
Leon Alton interpreta a Fight Spectator (uncredited) en la película.
William Boyett interpreta a Military Policeman (uncredited) en la película.
Bart Braverman interpreta a Boy (uncredited) en la película.
John Breen interpreta a Hearing Specatator (uncredited) en la película.
Frank Campanella interpreta a Detective (uncredited) en la película.
Walter Cartier hace el papel de Polack (uncredited).
Angela Cartwright hace el papel de Audrey at Age 3 (uncredited).
George Cisar interpreta a Fence (uncredited) en la película.
Russ Clark interpreta a Zale Fight Referee (uncredited) en la película.
Tom Coleman interpreta a Reporter at Sparring Session (uncredited) en la película.
Russ Conway hace el papel de Captain Grifton (uncredited).
Gene Coogan interpreta a Bookie (uncredited) en la película.
Clancy Cooper hace el papel de Captain Lancheck (uncredited).
Matt Crowley interpreta a Lou Stillman (uncredited) en la película.
Michael Dante interpreta a Shorty (uncredited) en la película.
Ray Danton hace el papel de Reporter (voice) (uncredited).
James Dime interpreta a Training Spectator (uncredited) en la película.
Robert Easton interpreta a Corporal Quinbury (uncredited) en la película.
John Eldredge hace el papel de George Niles (uncredited).
Joe Garcio interpreta a Radio Listener (uncredited) en la película.
Robert Gardett interpreta a Reporter (uncredited) en la película.
Tommy Garland interpreta a Referee (uncredited) en la película.
Sam Gilman interpreta a Detective Arresting Rocky (uncredited) en la película.
James Gonzalez interpreta a Trial Spectator (uncredited) en la película.
Herschel Graham interpreta a Fight Spectator (uncredited) en la película.
Donna Jo Gribble hace el papel de Yolanda Barbella (uncredited).
Kit Guard interpreta a Fight Spectator (uncredited) en la película.
Don Haggerty interpreta a Prison Guard (uncredited) en la película.
Bern Hoffman hace el papel de Fat Man at Hijacking Attempt (uncredited).
Allen Jaffe interpreta a Radio Listener (uncredited) en la película.
Dean Jones interpreta a Private in Rocky's Tent (uncredited) en la película.
Byron Kane interpreta a Reporter (uncredited) en la película.
Jackie Kelk hace el papel de George (uncredited).
Kenner G. Kemp hace el papel de Commissioner's Assistant (uncredited).
Jack Kenney interpreta a Reformatory Guard (uncredited) en la película.
Jess Kirkpatrick interpreta a Chicago Reporter (uncredited) en la película.
Richard LaMarr hace el papel de Fight Spectator (uncredited).
David Leonard hace el papel de Mr. Mueller (uncredited).
Len Lesser interpreta a Reporter at Sparring Session (uncredited) en la película.
Robert Loggia interpreta a Frankie Peppo (uncredited) en la película.
Jack Lomas interpreta a Reformatory Guard (uncredited) en la película.
Wilbur Mack interpreta a Fight Spectator (uncredited) en la película.
Philo McCullough interpreta a Fight Spectator (uncredited) en la película.
Frank McLure interpreta a Fight Spectator (uncredited) en la película.
Joseph Marr interpreta a Customer (uncredited) en la película.
Gregg Martell interpreta a Guard (uncredited) en la película.
Joe McGuinn interpreta a Guard (uncredited) en la película.
Tyler McVey hace el papel de Reporter (uncredited).
Tony Michaels hace el papel de Assistant Commissioner (uncredited).
Billy Nelson interpreta a Commissioner (uncredited) en la película.
Frank Mills hace el papel de Counterman at Gym (uncredited).
Robin Morse hace el papel de Reporter at Hearing (uncredited).
Sol Murgi interpreta a Fight Spectator (uncredited) en la película.
Monty O'Grady interpreta a Fight Spectator (uncredited) en la película.
Ralph Neff hace el papel de Spectator (uncredited).
Jimmy Murphy interpreta a Young Fighter at Gym (uncredited) en la película.
James O'Rear hace el papel de Judge (uncredited).
Jack Orrison interpreta a Detective (uncredited) en la película.
Jack Perry interpreta a Man in Bar (uncredited) en la película.
Judson Pratt interpreta a Johnny Hyland (uncredited) en la película.
Terry Rangno hace el papel de Rocky at Age 8 (uncredited).
Sid Raymond hace el papel de Subway Guard (uncredited).
Michael Ross interpreta a Subway Guard (uncredited) en la película.
Ralph Reed interpreta a Soldier (uncredited) en la película.
Dick Rich interpreta a Geezer (uncredited) en la película.
Christopher Riordan interpreta a Rocky's Friend (uncredited) en la película.
Benny Rubin hace el papel de Fight Promoter (uncredited).
Eddie Ryder interpreta a Prisoner (uncredited) en la película.
Wayne Taylor interpreta a Prisoner (uncredited) en la película.
Willard Sage interpreta a Earl Woodhope (uncredited) en la película.
Scott Seaton interpreta a Elevator Passenger (uncredited) en la película.
Jack Shea hace el papel de Prison Guard (uncredited).
Don Shelton hace el papel de Captain at Court Martial (uncredited).
Court Shepard interpreta a Tony Zale (uncredited) en la película.
Al Silvani interpreta a Rocky's Second (uncredited) en la película.
Buster Slaven hace el papel de Sidekick (uncredited).
Bert Stevens interpreta a Fight Spectator (uncredited) en la película.
Ray Stricklyn hace el papel de Bryson (uncredited).
James Todd hace el papel de Colonel at Court Martial (uncredited).
Renata Vanni interpreta a (uncredited) en la película.
Ray Walker interpreta a Zale Ring Announcer (uncredited) en la película.
Bob Whitney interpreta a Hearing Specatator (uncredited) en la película.
Billy Wilson interpreta a Commissioner (uncredited) en la película.
Anne Caprile interpreta a Norma (french voice) en la película.
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