On screen
Cast
16 credited performers
Peter Cushing
Dr. Brian Stanley
Edward Judd
Dr. David West
Carole Gray
Toni Merrill
Eddie Byrne
Dr. Reginald Landers
Sam Kydd
Constable John Harris
Niall MacGinnis
Mr. Roger Campbell
Artwork unavailable
James Caffrey
Peter Argyle
Liam Gaffney
Ian Bellows
Artwork unavailable
Keith Bell
Halsey
Margaret Lacey
Old Woman
Peter Forbes-Robertson
Dr. Lawrence Phillips
Shay Gorman
Morton
Artwork unavailable
Richard Bidlake
Carson
Artwork unavailable
Edward Ogden
Helicopter Pilot
Artwork unavailable
Joyce Hemson
Mrs. Bellows
Artwork unavailable
Roger Heathcott
Dunley