Gordon De Main

as Col. Duval

as Man with Masterson on Radio (uncredited)

as George Bullock

as Dock Official (uncredited)

as Dave Underwood

as Professor Fitzgerald

as Superintendent (uncredited)

as Wilfred Barnet

as Plainclothesman

as Jason (uncredited)

as Denby

as Party Guest (uncredited)

as Immigration Guard (uncredited)

as Elevator Passenger (uncredited)

as Captain Bates

as Gonzalez (uncredited)

as Kronsky Aide

as Salvage Boss

as Captain Graham

as Assayer

as Bartender Jake

as Police Sergeant (uncredited)

as Deputy Miller

as Jury forman

as Self - Spectator (uncredited)