Brian Donlevy
饰 Prof. Bernard Quatermass
Richard Wordsworth
饰 Victor Carroon
David King-Wood
饰 Dr. Gordon Briscoe
Jack Warner
饰 Inspector Lomax
Margia Dean
饰 Judith Carroon
John Wynn
饰 Detective Sergeant Best
Thora Hird
饰 Rosie Wrigley
Sam Kydd
饰 Police Sergeant Questioning Rosie
珍·爱舍
饰 Little Girl (uncredited)
Toke Townley
饰 The Chemist (uncredited)
Margaret Anderson
饰 Maggie (uncredited)
Eric Corrie
饰 Maggie's Boyfriend (uncredited)
Henry B. Longhurst
饰 George, Maggie's father (uncredited)
Ernest Hare
饰 Crash Site Fire Chief (uncredited)
Michael Godfrey
饰 Crash Site Fireman (uncredited)
Marianne Stone
饰 Central Clinic Nurse (uncredited)
