as Van Martin - Announcer

as Detective Dave Lewis

as Arthur Enslee

as Doctor Calloway

as James Benson

as Square Deal Scottie

as Fred Morgan

as Big Jim Johnson

as Kurt Redman

as Al Bolger

as Capt. Long [Chs. 1-2, 4, 11-12]

as Investigator Hogan

as Mug (uncredited)

as Commander (uncredited)

as Butch