Full Credits
30 members

Don 'Red' Barry
Mike O'Hara, "King Cobra"

Sheila Ryan
Janet 'J.L.' Brannigan

Tom Brown
Joe O'Hara

Joseph Crehan
Oscar Brannigan

John Cason
Tiger Johnson
Tony Canzoneri
Swinger Markham
Joey Adams
Duke Hensel

William Edmunds
Professor Berger
Edit Angold
Mama Berger

Margia Dean
Joy White
Harry Brown
Fight Manager

Lyle Talbot
Radio Announcer

Michael Vallon
Bettor

Sam Flint
Doctor
Frankie Van
Referee
Dan Tobey
Fight Announcer
James J. Casino
Boxer (uncredited)
Ned Roberts
Fighter (uncredited)
Jimmy Martin
Fight Second

Chester Clute
Timid Man

Jack Perry
Trainer (uncredited)
John Breen
Fight Spectoator (uncredited)

Noble 'Kid' Chissell
Fight Spectator (uncredited)
Bobby Henshaw
Fight Spectator (uncredited)

Charles Morton
Fight Spectator (uncredited)

Sol Murgi
Fight Spectator (uncredited)

Stanley Price
Fight Spectator (uncredited)
Mark Plant
Gangster

Harvey Parry
Bit Role (uncredited)

Al Bain
Fight Spectator (uncredited)
24 members
Frank McDonald
Director
Austen Jewell
Assistant Director
Moree Herring
Script Supervisor
Daniel B. Ullman
Story
Ron Ormond
Screenplay
Gloria Welsch
Dialogue
June Carr Ormond
Associate Producer
Robert L. Lippert
Executive Producer
Ira Webb
Associate Producer
Ron Ormond
Producer
Murray Lerner
Producer's Assistant
Ernest Miller
Director of Photography
Archie R. Dalzell
Camera Operator
Glen Glenn
Sound
Walter Greene
Original Music Composer
Earl Snyder
Sound
Edward Rebner
Musician
Fred Preble
Art Direction
Ted Offenbecker
Set Decoration
Donald S. Wakeling
Costume Design
Paul Stanhope
Makeup Artist
Hugh Winn
Editor
Ray Mercer
Special Effects
Frankie Van
Technical Supervisor