John Robinson

as Henry Errington

as Lord Fawnlee

as Old Lieutenant Ekdal

as Quemot

as Detective-Sergeant Leith

as Infantry General at Field Briefing (uncredited)

as Franz Von Markheim

as Archdeacon Pomphret

as Sir Colenso Ridgeon

as Lloyd Crichton

as Berkeley Reckitt

as Secretary

as Dr. Braithwaite

as Prof. Martineau / Mansel

as Linnett

as Dr. Bruce Napier

as Oliver Farrant

as Unnamed Character

as Pilot

as Donald Scarlett

as Taylor

as Muller (uncredited)

as Lord Sellington

as Collings

as Walter Bray

as Old Ekdal

as Charles de Bouvet

as Edmund Newton

as Sidney Fairweather

as Professor Gouin

as Squire Dale

as Lloyd Crichton

as Professor Bernard Quatermass