"A father who experiments with his son's psychokinetic powers is unaware that these experiments have released a demon from hell which lives in his son's closet, preparing to take over the young boy's soul."
Cotter Smith
as Sergeant Sam Taliaferro
Mel Harris
as Dr. Nora Haley
Scott Curtis
as Cameron Lansing
Chuck McCann
as Ben Majors
Leigh McCloskey
as Pete Groom
Kim Lankford
as Dory Lansing
Gary Hudson
as Bob Froelich
Tab Hunter
as Owen Lansing
Dort Clark
as Alan Wilson
David Povall
as Capt. Navarro
Wilson Smith
as Joe Crespy
Kerry Yo Nakagawa
as Policeman
Raymond Patterson
as Physician
Skip E. Lowe
as Newscaster
Bonnie Bradigan
as Newswoman
Frank Pesce
as Ed Wallace
Paul W. Zecevic
as Reporter
Doc D. Charbonneau
as Little Demon
William Lustig
as Ice Cream Eater (uncredited)
Armand Mastroianni
Director
Gary Brandner
Screenplay
Luigi Cingolani
Producer
John S. Curran
Line Producer
George Zecevic
Executive Producer
Franc Caggiano
Associate Producer
Harry Manfredini
Original Music Composer
Russell Carpenter
Director of Photography
Frank De Palma
Editor
Ann Remsen Manners
Casting
Mike Bingham
Production Design
Sarah Burdick Stone
Set Decoration
Rose Librizzi
Makeup Artist
Prosthetic Makeup Artist
Alex Rambaldi
Kelly Van Horn
Unit Production Manager
Ara Ashjian
Sound Recordist
Kenneth R. Burton
Gregory Cheever
Greg Landerer
Special Effects
Carlo Rambaldi
Creature Design
Ermando Biamonte
Visual Effects Supervisor
Spiro Razatos
Stunt Coordinator
Cheryl Wheeler Duncan
Stunts
Paul A. Edwards
Additional Photography