Edward Underdown

as Air Vice Marshall

as Harry Chelm

as Det. Insp. Johnstone

as Malden's friend

as Dick Sanderson (uncredited)

as Inspector Adams

as Major Dawes

as Bennett Sanders

as Dr. Peter Murdoch

as Colonel William Hicks

as Don Diego

as Passport Official

as Zastor

as Rupert

as Jack Laurie

as Mr. Hayes

as General Nesfield

as Capt. Morgan

as Chairman of Tribunal

as Judge

as Frank

as Col. Mansell