A boxer is killed in the ring, and the only clue is a tune that a man was whistling.
as Bill Devons
as Pauline Ward
as Nick Nicholls
as Althea Ames
as Watchman
as Edna Mayberry (as Lynn Roberts)
as Albert 'Slats' Keefe
as Ralph Mortimer
as Captain Joseph Filsom
as Tommy Madison - the Champ
as Ace Cummings
as Announcer Dan Tobey
as Max
as Smiley Burnette
as Jake
as Max (as Al Bayne)
