Leon Errol

Knobby Walsh

Joe Kirkwood Jr.

Joe Palooka

Robert Coogan

Humphrey Pennyworth

Pamela Blake

Anne Howe Palooka

Jerome Cowan

Belden

Joe Besser

Carlton

Don McGuire

Mitchell

Donald MacBride

Mayor

Curt Bois

Pierre

Clem Bevans

Mr. Edwards

Frank Sully

Looie

Eddie Gribbon

Canvasback

Meyer Grace

Referee

Lillian Bronson

Prunella Pennyworth - Humphrey's Sister

Sam Balter

Fight Announcer

Russ Kaplan

Johnson

Sandra Gould

Laurine

Bert Conway

Shorty

Ray Walker

Lefty

Knox Manning

Radio Announcer

Frosty Royce

Farmer