"Joe O'Hara finds out he has a damaged optic nerve just before a boxing match for the title. He needs the money badly, so he doesn't delay the fight. The opponent discovers Joe's weakness and pounds on his eyes, causing him to go blind."
Don 'Red' Barry
as Mike O'Hara, "King Cobra"
Sheila Ryan
as Janet 'J.L.' Brannigan
Tom Brown
as Joe O'Hara
Joseph Crehan
as Oscar Brannigan
John Cason
as Tiger Johnson
Tony Canzoneri
as Swinger Markham
Joey Adams
as Duke Hensel
William Edmunds
as Professor Berger
Edit Angold
as Mama Berger
Margia Dean
as Joy White
Harry Brown
as Fight Manager
Lyle Talbot
as Radio Announcer
Michael Vallon
as Bettor
Sam Flint
as Doctor
Frankie Van
as Referee
Dan Tobey
as Fight Announcer
James J. Casino
as Boxer (uncredited)
Ned Roberts
as Fighter (uncredited)
Jimmy Martin
as Fight Second
Chester Clute
as Timid Man
Jack Perry
as Trainer (uncredited)
John Breen
as Fight Spectoator (uncredited)
Noble 'Kid' Chissell
as Fight Spectator (uncredited)
Bobby Henshaw
Charles Morton
Sol Murgi
Stanley Price
Mark Plant
as Gangster
Harvey Parry
as Bit Role (uncredited)
Al Bain
Frank McDonald
Director
Murray Lerner
Producer's Assistant
Walter Greene
Original Music Composer
Earl Snyder
Sound
Daniel B. Ullman
Story
Ron Ormond
Screenplay
Austen Jewell
Assistant Director
Donald S. Wakeling
Costume Design
Glen Glenn
Ira Webb
Associate Producer
Fred Preble
Art Direction
Producer
June Carr Ormond
Hugh Winn
Editor
Ted Offenbecker
Set Decoration
Ernest Miller
Director of Photography
Moree Herring
Script Supervisor
Paul Stanhope
Makeup Artist
Edward Rebner
Musician
Ray Mercer
Special Effects
Technical Supervisor
Gloria Welsch
Dialogue
Robert L. Lippert
Executive Producer
Archie R. Dalzell
Camera Operator