character - Muller

character - Lord Fawnlee

character - Collings

character - Detective-Sergeant Leith

character - Edmund Newton

character - Infantry General at Field Briefing (uncredited)

character - Jason Douglas

character - Sidney Fairweather

character - Professor Gouin

character - Archdeacon Pomphret

character - Berkeley Reckitt

character - Professor Bernard Quatermass

character - Secretary

character - Prof. Martineau / Mansel

character - Dr. Braithwaite

character - Linnett

character - Dr. Bruce Napier

character - Oliver Farrant

character - Unnamed Character

character - Pilot

character - Taylor

character - Donald Scarlett