as Berkeley Reckitt

as Prof. Martineau / Mansel

as Donald Scarlett

as Pilot

as Archdeacon Pomphret

as Detective-Sergeant Leith

as Oliver Farrant

as Infantry General at Field Briefing (uncredited)

as Dr. Bruce Napier

as Linnett

as Taylor

as Lord Fawnlee

as Dr. Braithwaite

as Secretary

as Unnamed Character

as Lloyd Crichton