as Capt. Long [Chs. 1-2, 4, 11-12]
as Doctor Calloway
as Square Deal Scottie
as Mug (uncredited)
as Commander (uncredited)
as Arthur Enslee
as Van Martin - Announcer
as James Benson
as Detective Dave Lewis
as Investigator Hogan
as Butch
as Fred Morgan
as Big Jim Johnson
as Kurt Redman
as Al Bolger
