Synopsis
The first manned spacecraft, fired from an English launchpad, is first lost from radar, then roars back to Earth and crashes in a farmer's field, and is found to contain only one of the three men who took off in it; and he is unable to talk but appears to be undergoing a torturous physical and mental metamorphosis.
Cast

Brian Donlevy
Prof. Bernard Quatermass

Richard Wordsworth
Victor Carroon

David King-Wood
Dr. Gordon Briscoe

Jack Warner
Inspector Lomax

Margia Dean
Judith Carroon

Maurice Kaufmann
Marsh
John Wynn
Detective Sergeant Best

Harold Lang
Christie

Lionel Jeffries
Blake

Thora Hird
Rosie Wrigley

Sam Kydd
Police Sergeant Questioning Rosie

Jane Asher
Little Girl (uncredited)

Toke Townley
The Chemist (uncredited)

Gordon Jackson
BBC TV producer
Margaret Anderson
Maggie (uncredited)
Eric Corrie
Maggie's Boyfriend (uncredited)
Henry B. Longhurst
George, Maggie's father (uncredited)
Ernest Hare
Crash Site Fire Chief (uncredited)
Michael Godfrey
Crash Site Fireman (uncredited)

Marianne Stone
Central Clinic Nurse (uncredited)

John Kerr
Photo Lab Technician (uncredited)
Bartlett Mullins
Zookeeper (uncredited)
Mayne Lynton
Zoo Superintendent (uncredited)
Barry Lowe
Nurse Tucker (uncredited)
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