On screen
Cast
18 credited performers
Anton Diffring
Dr. Erik Leichner
William Sylvester
Vince Warren
Artwork unavailable
Justine Lord
Diane Graydon
Martin Miller
Schroeder
Artwork unavailable
Tony Garnett
Brennan
Warren Mitchell
Chemist
Philip Locke
Foster
Jacqueline Jones
Vanessa Palmer
Geoffrey Palmer
Dr. Tanfield
Sylva Langová
Vivienne Leichner
Peter Howell
Inspector Macready
Oliver MacGreevy
Wilkinson
Artwork unavailable
David Futcher
Whitehead
Clifford Earl
Sergeant
Artwork unavailable
Derek Partridge
Detective
Artwork unavailable
Fred Beauman
Policeman
Artwork unavailable
Michael Moyer
Policeman
Roland Curram
Soldier