Leon Errol
Knobby Walsh

Joe Kirkwood Jr.
Joe Palooka

Elyse Knox
Anne Howe

Marcel Journet
Anton Kindel

Sheila Ryan
Myra Madison

Harry Lewis
Chick Bennett

Frank Sully
Looie

Ian Wolfe
Professor Lilliquist

Sam Hayes
Fight Announcer

Walter Sande
Austin

Douglass Dumbrille
Captain Lance

Douglas Fowley
Thurston

Eddie Gribbon
Canvasback

Sonny Chorre
Angelo Cardona

Ralph Graves
Dr. Colman

Martín Garralaga
Announcer

Roland Dupree
Bellboy

Gertrude Messinger
Nurse

John Hart
Pedro

Robert Conway
Steward

John Indrisano
Fight Referee

Joe Herrera
Fight Referee

Roy Aversa
Spanish Handler

Johnny Casino
Attendant

Pedro de Cordoba
Museum Caretaker

Frank Ellis
Policeman

William Roy
Messenger

Paul Stader
Kern

Wally West
Arena Policeman