Charles Lang

Policeman (uncredited)

The Young Engineer

Whitey

Jimmy Dorgan

FBI Agent

Paul Goff

Fred Matson

Jim Jackson

Mike Harrigan

Jerry Waters

Mack McCann

Paul Revere Smith

Jeff Brant

Steve Morrison

Jim Joyce

Tex Harper

(uncredited)

J. L. McTavish

George, Duke of Buckingham

John Steele

Soldier (uncredited)

Det. Carlton (uncredited)

Ralph

Marine (uncredited)

Russ Monroe