Rocky Hanlon (as John Day)
John Daheim
Dr. James C. Turner, Police Psychiatrist
Paul Maxey
Professor Dugan (uncredited)
Walter F. Appler
Ring announcer (uncredited)
Milt Bronson
Newspaperman (uncredited)
Russ Conway
Motorcycle cop (uncredited)
Ralph Dunn
Fighter on rowing machine (uncredited)
Kit Guard
Ringsider with cigar (uncredited)
Stuart Holmes
Fight spectator behind Boots (uncredited)
Donald Kerr
Tough guy at bar (uncredited)
Rory Mallinson
Photographer (uncredited)
Ralph Montgomery
Fight Crowd Extra (uncredited)
William H. O'Brien
Photographer (uncredited)
Franklin Parker
Rocky's handler (uncredited)
Charles Perry
Lou's handler (uncredited)
Carl Sklover
Newspaperman (uncredited)
Billy Snyder
Rooney, Rocky's manager (uncredited)
Billy Wayne