Director/a
Roy Ward Baker
DIRECTOR/A
Reparto (por orden de créditos)
James Donald
Doctor Roney
Andrew Keir
Quatermass
Barbara Shelley
Barbara Judd
Julian Glover
Colonel Breen
Duncan Lamont
Sladden
Bryan Marshall
Captain Potter
Peter Copley
Howell
Edwin Richfield
Minister
Grant Taylor
Police Sergeant Ellis
Maurice Good
Sergeant Cleghorn
Robert Morris
Watson
Sheila Steafel
Journalist
Hugh Futcher
Sapper West
Hugh Morton
Elderly Journalist
Thomas Heathcote
Vicar
Noel Howlett
Abbey Librarian
Hugh Manning
Pub Customer
June Ellis
Blonde
Keith Marsh
Johnson
James Culliford
Corporal Gibson
Bee Duffell
Miss Dobson
Roger Avon
Electrician
Brian Peck
Technical Officer
John Graham
Inspector
Charles Lamb
Newsvendor
Ann Barrass
Commuteruncredited
Roy Beck
Student archaeologistuncredited
Peter Bennett
London Transport Officialuncredited
Bette Bourne
Second Electricianuncredited
John Bown
TV Intervieweruncredited
Simon Brent
Orderly Officeruncredited
Douglas Cooper
Fleeing Manuncredited
David Crane
Institute Attendantuncredited
William Ellis
Journalistuncredited
Mark Elwes
Second Technicianuncredited
Harry Fielder
Possessed Manuncredited
George Fisher
Man in Baruncredited
Joseph Greig
Pub Customeruncredited
Fred Haggerty
Patrick Halpin
Tube Train Passengeruncredited
George Hilsdon
Barmanuncredited
Walter Horsbrugh
Messengeruncredited
Alastair Hunter
Institute Doorkeeperuncredited
Philip Johns
Policemanuncredited
Elroy Josephs
Black Workmanuncredited
Cyril Kent
Eric Kent
Sapperuncredited
Dickey Luck
Rosalind Mendleson
George Oliver
James Payne
Man Running from Stationuncredited
Michael Poole
Older Workmanuncredited
Eddie Powell
Mike Reid
John Rutland
Second London Transport Officialuncredited
Harold Sanderson
David Savile
Army Officeruncredited
Bill Sawyer
Albert Shepherd
Loaderuncredited
Leslie Southwick
Gareth Thomas
Other Workmanuncredited
Harry Tierney
Graham Tonbridge
Official Watching Videouncredited
Mickey Varey
Brian Walton
Ian White
TV Announceruncredited