Oliver Reed
Dr. Hal Raglan
Samantha Eggar
Nola Carveth
Art Hindle
Frank Carveth
Henry Beckman
Barton Kelly
Nuala Fitzgerald
Juliana Kelly
Cindy Hinds
Candice Carveth
Susan Hogan
Ruth Mayer
Gary McKeehan
Mike Trellan
M
Michael Magee
Inspector
Robert A. Silverman
Jan Hartog
J
Joseph Shaw
Coroner
L
Larry Solway
Lawyer
Reiner Schwarz
Dr. Birkin
Felix Silla
Creature
J
John Ferguson
Creature
Nicholas Campbell
Chris
M
Mary Swinton
Wendy
J
Jerry Kostur
Construction Worker
Chris Britton
Man in Auditorium
E
Elijah Siegler
Samson (uncredited)