The Underdog

Barton MacLane

John Tate

Bobby Larson

Henry Tate

Jan Wiley

Amy Tate

Charlotte Wynters

Mrs. Bailey

Conrad Binyon

Spike

Elizabeth Valentine

Mrs. Connors

Kenneth Harlan

Eddie Mohr

George Anderson

Kraeger

Jack Kennedy

Officer O'Toole

Frank Ellis

Old Timer (uncredited)

I. Stanford Jolley

Friendly Soldier (uncredited)

Jack Rockwell

Fireman (uncredited)