Calificación
Reparto

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