Trailer
Cast
Harold Lang
Christie
Marianne Stone
Central Clinic Nurse (uncredited)
Donald Gray
TV Program Announcer (uncredited)
James Drake
Sound Engineer (uncredited)
David King-Wood
Dr. Gordon Briscoe
Jane Asher
Little Girl (uncredited)
John Kerr
Photo Lab Technician (uncredited)
Gordon Jackson
BBC TV producer
Margia Dean
Judith Carroon
Eric Corrie
Maggie's Boyfriend (uncredited)
Maurice Kaufmann
Marsh
Thora Hird
Rosie Wrigley
Sam Kydd
Police Sergeant Questioning Rosie
Stanley Van Beers
Ludwig Reichenheim (uncredited)
Richard Wordsworth
Victor Carroon
Lionel Jeffries
Blake
Margaret Anderson
Maggie (uncredited)
Basil Dignam
Sir Lionel Dean (uncredited)
Brian Donlevy
Prof. Bernard Quatermass
Jack Warner
Inspector Lomax
Toke Townley
The Chemist (uncredited)