طاقم التمثيل
Tom Brown
Joe O'Hara
Charles Morton
Fight Spectator (uncredited)
John Cason
Tiger Johnson
Noble 'Kid' Chissell
Fight Spectator (uncredited)
Michael Vallon
Bettor
Sam Flint
Doctor
Al Bain
Fight Spectator (uncredited)
Don 'Red' Barry
Mike O'Hara, "King Cobra"
Lyle Talbot
Radio Announcer
Jack Perry
Trainer (uncredited)
William Edmunds
Professor Berger
Chester Clute
Timid Man
Harvey Parry
Bit Role (uncredited)
Margia Dean
Joy White
Joseph Crehan
Oscar Brannigan
Sol Murgi
Fight Spectator (uncredited)
Stanley Price
Fight Spectator (uncredited)
Sheila Ryan
Janet 'J.L.' Brannigan