On screen
Cast
17 credited performers
Elizabeth Montgomery
Katherine Merrill
Anthony Hopkins
Dr. Michael Grant
Michele Lee
Dolores Marsh
Janet MacLachlan
Eileen
Michael Lerner
Manny
John Elerick
Jeremy
Herbert Berghof
Dr. Kassiter
Vic Tayback
Archie
Mario Roccuzzo
Sandy
Artwork unavailable
Julie Rogers
Veronica
Artwork unavailable
Edgar Daniels
Zalenki
James Ingersoll
Dr. Snyder
Jack Manning
Sam
Artwork unavailable
Garrick Russell
Eileen's Son
Eric Server
Dr. Birney
Deborah White
Janet
Artwork unavailable
Michael Thoma
Sid (uncredited)