Leon Errol

as Knobby Walsh

Joe Kirkwood Jr.

as Joe Palooka

Robert Coogan

as Humphrey Pennyworth

Pamela Blake

as Anne Howe Palooka

Jerome Cowan

as Belden

Joe Besser

as Carlton

Don McGuire

as Mitchell

Donald MacBride

as Mayor

Curt Bois

as Pierre

Clem Bevans

as Mr. Edwards

Frank Sully

as Looie

Eddie Gribbon

as Canvasback

Meyer Grace

as Referee

Lillian Bronson

as Prunella Pennyworth - Humphrey's Sister

Sam Balter

as Fight Announcer

Russ Kaplan

as Johnson

Sandra Gould

as Laurine

Bert Conway

as Shorty

Ray Walker

as Lefty

Knox Manning

as Radio Announcer

Frosty Royce

as Farmer