as Prof. Bernard Quatermass

as Victor Carroon

as Insp. Lomax

as Dr. Gordon Briscoe

as Judith Carroon

as Marsh (uncredited)

as Det. Sgt. Best (uncredited)

as Blake

as Christie

as Little Girl (uncredited)

as The Chemist (uncredited)

as Rosemary 'Rosie' Elizabeth Wrigley

as Police Sergeant Questioning Rosie

as BBC TV producer

as Maggie (uncredited)

as Maggie's Boyfriend (uncredited)

as George - Maggie's Father (uncredited)

as Crash Site Fire Chief (uncredited)

as Crash Site Fireman (uncredited)

as Central Clinic Nurse (uncredited)

as Photo Lab Technician (uncredited)

as Zookeeper (uncredited)

as Zoo Superintendent (uncredited)

as Nurse Tucker (uncredited)

as Mrs. Lomax (uncredited)

as Mother at Zoo (uncredited)

as TV Show Floor Director (uncredited)

as Sir Lionel Dean (uncredited)

as TV Program Announcer (uncredited)

as Charles Greene (uncredited)

as Dr. Ludwig Reichenheim (uncredited)

as Sgt. Bromley

as Sound Engineer (uncredited)