Dr. Hal Raglan
Nola Carveth
Frank Carveth
Barton Kelly
Juliana Kelly
Candice Carveth
Ruth Mayer
Mike Trellan
Inspector
Jan Hartog (as Robert Silverman)
Coroner
Lawyer
Dr. Birkin
Creature
Chris
Wendy
Construction Worker
Man in Auditorium (as Christopher Britton)
Samson (uncredited)