Prof. Bernard Quatermass
Inspector Lomax
Victor Carroon
Mrs. Judith Carroon
Rosemary 'Rosie' Elizabeth Wrigley
BBC TV producer
Dr. Gordon Briscoe
Christie
Blake
Police Sergeant Questioning Rosie
Mrs. Lomax (uncredited)
Maggie (uncredited)
Little Girl (uncredited)
Night Porter (uncredited)
Police Driver (uncredited)
Maggie's Boyfriend (uncredited)
Station Policeman (uncredited)
Charles Green (uncredited)
Police Constable Escorting Rosie (uncredited)
Sir Lionel Dean (uncredited)
Sound Engineer (uncredited)
Bystander (uncredited)
Mother at Zoo (uncredited)
Crash Site Fireman (uncredited)
TV Announcer (uncredited)
TV Floor Director (uncredited)
Crash Site Fire Chief (uncredited)
Police Officer (uncredited)
Central Clinic Nurse (uncredited)
Technician Controlling Power Supply (uncredited)
Inspector (uncredited)
Marsh (uncredited)
Film Lab Technician (uncredited)
George - Maggie's Father (uncredited)
Sgt. Bromley (uncredited)
Tucker - Night Nurse (uncredited)
Zoo Superintendent (uncredited)
P.C. Evans (uncredited)
Zookeeper (uncredited)
Policeman (uncredited)
BBC Announcer (uncredited)
Local Policeman (uncredited)
Army officer (uncredited)
Major at Crash Site (uncredited)
Reporter (uncredited)
The Chemist (uncredited)
Dr. Ludwig Reichenheim (uncredited)
Det. Sgt. Best (uncredited)