Edward Nugent
— Gene Harris
Lucille Lund
— Claire Thomas
Joan Barclay
— Mary Comstock
Forrest Taylor
— George Miller
Syd Saylor
— Dave Moran
Monte Blue
— Bert McNamee
John Elliott
— The Police Captain
John Cowell
— Graham - Murphy's Manager
Willard Kent
— Veterinarian
Walter O'Keefe
— John Halligan - Referee
Corky
— Babe, Gene's Dog
Vane Calvert
— Waitress (uncredited)
Jack Cheatham
— Cop (uncredited)
Richard Cramer
— Ring Announcer / Prison Guard (uncredited)
Lloyd Ingraham
— The Prison Warden (uncredited)
Murdock MacQuarrie
— Fight Fan (uncredited)
William McCall
— Prison Inmate (uncredited)
Pat McKee
— Prison Fight Ring Opponent (uncredited)
Fred Parker
— Arena Watchman (uncredited)
Arthur Thalasso
— Coroner (uncredited)
Dorothy Vernon
— Waitress at Tea Room (uncredited)
Martha Wentworth
— Mrs. Murphy (uncredited)
Blackie Whiteford
— Fight Second (uncredited)
Donald Kerr
— The Sportscaster (uncredited)