On screen
Cast
21 credited performers
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
Artwork unavailable
Meyer Grace
Referee
Lillian Bronson
Prunella Pennyworth - Humphrey's Sister
Artwork unavailable
Sam Balter
Fight Announcer
Artwork unavailable
Russ Kaplan
Johnson
Sandra Gould
Laurine
Artwork unavailable
Bert Conway
Shorty
Ray Walker
Lefty
Knox Manning
Radio Announcer
Artwork unavailable
Frosty Royce
Farmer