All Cast
Christopher Lee
Dr. Stephen Hayward
Jon Finch
Lomax
Judy Geeson
Helen
Dilys Hamlett
Julia Hayward
Tony Beckley
Sgt. Greene
Jane Merrow
Mary Dawson
Colin Jeavons
Bob Dawson
David Trevena
Johnson
Adrian Cairns
Morgan
Daphne Neville
Nurse Fisher
Hugh Smith-Marriott
Dr. Chapman
Hubert Tucker
Ronalds