"A scientist creates Proteus, an organic supercomputer with artificial intelligence which becomes obsessed with human beings, and in particular the creator's wife."
Julie Christie
as Susan Harris
Fritz Weaver
as Alex Harris
Gerrit Graham
as Walter Gabler
Berry Kroeger
as Petrosian
Lisa Lu
as Soong Yen
Larry J. Blake
as Cameron
John O'Leary
as Royce
Alfred Dennis
as Mokri
Davis Roberts
as Warner
Patricia Wilson
as Mrs. Talbert
Dana Laurita
as Amy
Michelle Stacy
as Marlene
Felix Silla
as Baby
Tiffany Potter
E. Hampton Beagle
as Night Operator
Michael Glass
as Technician
Barbara O. Jones
Monica MacLean
as Joan Kemp
Peter Elbling
as Scientist
Georgie Paul
as Housekeeper
Robert Vaughn
as Proteus IV (voice) (uncredited)
Donald Cammell
Director
Dean R. Koontz
Novel
Herb Jaffe
Producer
Jerry Fielding
Original Music Composer
Frank Mazzola
Editor
Don L. Cash
Makeup Artist
Frank Griffin
Lee Harman
Dione Taylor
Hairdresser
Alan Brimfeld
Second Assistant Director
Edward Teets
Assistant Director
Jerry Jost
Sound
William L. McCaughey
John Riordan
Sound Editor
Tom Fisher
Special Effects
Terry W. King
Glen Robinson
Julie Ann Johnson
Stunts
Grant Bassett
Visual Effects
Jordan Belson
Richard L. Froman
Bo Gehring
Ron Hays
Domenic Iaia
James F. Liles
Bill Butler
Director of Photography
Robert Jaffe
Screenplay
Roger O. Hirson
Steven-Charles Jaffe
Associate Producer
Jennifer Shull
Casting
Edward C. Carfagno
Production Design
Barbara Krieger
Set Decoration
Regina Gruss
Publicist