John Robinson

as Infantry General at Field Briefing (uncredited)

as Adm. Sir Bertram Ramsay (uncredited)

as Pilot

as Lord Fawnlee

as Prof. Martineau / Mansel

as Berkeley Reckitt

as Unnamed Character

as Secretary

as Sir Colenso Ridgeon

as Archdeacon Pomphret

as Dr. Bruce Napier

as Linnett

as Dr. Braithwaite

as Donald Scarlett

as Taylor

as Lloyd Crichton

as Quemot

as Old Lieutenant Ekdal

as Detective-Sergeant Leith

as Oliver Farrant