as Henry Errington

as Muller

as Muller (uncredited)

as Lord Fawnlee

as Old Lieutenant Ekdal

as Quemot

as Lord Sellington

as Collings

as Walter Bray

as Dr. Saint

as Detective-Sergeant Leith

as Old Ekdal

as Sir Michael Gerrard

as Edmund Newton

as Charles de Bouvet

as Reverend Roger Leyland

as Infantry General at Field Briefing (uncredited)

as Franz Von Markheim

as Adm. Sir Bertram Ramsay (uncredited)

as Jason Douglas

as Sidney Fairweather

as Archdeacon Pomphret

as Professor Gouin

as Squire Dale

as Serjeant Sullivan KC

as Sir Colenso Ridgeon

as Hugh Turner

as Lloyd Crichton

as Berkeley Reckitt

as Lloyd Crichton

as Detective Sergeant Leith

as Secretary

as Professor Bernard Quatermass

as Prof. Martineau / Mansel

as Linnett

as Dr. Braithwaite

as Thomas Northon

as Dr. Larry Parker

as Oliver Farrant

as Dr. Bruce Napier

as Pilot

as Unnamed Character

as Donald Scarlett

as Taylor