| Photos (see all 11 | slideshow) |
| Julie Christie | ... | Susan Harris | |
| Fritz Weaver | ... | Alex Harris | |
| Gerrit Graham | ... | Walter Gabler | |
| Berry Kroeger | ... | Petrosian | |
| Lisa Lu | ... | Soong Yen | |
| Larry J. Blake | ... | Cameron | |
| John O'Leary | ... | Royce | |
| Alfred Dennis | ... | Mokri | |
| Davis Roberts | ... | Warner | |
| Patricia Wilson | ... | Mrs. Talbert | |
| E. Hampton Beagle | ... | Night Operator | |
| Michael Glass | ... | Technician | |
| Barbarao | ... | Technician | |
| Dana Laurita | ... | Amy | |
| Monica MacLean | ... | Joan Kemp | |
| Peter Elbling | ... | Scientist (as Harold Oblong) | |
| Georgie Paul | ... | Housekeeper | |
| Michelle Stacy | ... | Marlene | |
| Tiffany Potter | ... | Baby | |
| Felix Silla | ... | Baby | |
| rest of cast listed alphabetically: | |||
| Michael Dorn | ... | Bit (uncredited) | |
| Robert Vaughn | ... | Proteus IV (voice) (uncredited) | |
Directed by | |||
| Donald Cammell | |||
Writing credits | ||
| Dean R. Koontz | (novel "Demon Seed") | |
| Robert Jaffe | (writer) and | |
| Roger O. Hirson | (writer) | |
Produced by | |||
| Herb Jaffe | .... | producer | |
| Steven-Charles Jaffe | .... | associate producer (as Steven C. Jaffe) | |
Original Music by | |||
| Jerry Fielding | |||
Cinematography by | |||
| Bill Butler | (director of photography) | ||
Film Editing by | |||
| Frank Mazzola | (as Francisco Mazzola) | ||
Casting by | |||
| Jennifer Shull | |||
Production Design by | |||
| Edward C. Carfagno | |||
Set Decoration by | |||
| Barbara Krieger | |||
Makeup Department | |||
| Don L. Cash | .... | makeup artist | |
| Frank Griffin | .... | special makeup | |
| Lee Harman | .... | makeup artist | |
| Dione Taylor | .... | hair stylist | |
Production Management | |||
| Michael I. Rachmil | .... | unit production manager (as Michael Rachmil) | |
Second Unit Director or Assistant Director | |||
| Alan Brimfeld | .... | second assistant director (as Alan Brimfield) | |
| Edward Teets | .... | assistant director (as Edward A. Teets) | |
Art Department | |||
| Bill Wainess | .... | property master (as William Wainess) | |
Sound Department | |||
| Jerry Jost | .... | sound | |
| William L. McCaughey | .... | sound (as William McCaughey) | |
| John Riordan | .... | sound editor | |
Special Effects by | |||
| Tom Fisher | .... | special effects | |
| Terry W. King | .... | special effects (uncredited) | |
| Glen Robinson | .... | special mechanical effects (uncredited) | |
Visual Effects by | |||
| Ron Hays | .... | electronic visual designer | |
| Ron Hays | .... | electronic visual development | |
| Jim Liles | .... | optical supervisor | |
Stunts | |||
| Julie Ann Johnson | .... | stunts (uncredited) | |
Camera and Electrical Department | |||
| Colin J. Campbell | .... | gaffer | |
| James R. Connell | .... | camera operator | |
| George Hill | .... | key grip | |
| John R. Shannon | .... | still photographer (uncredited) | |
Animation Department | |||
| Richard L. Froman | .... | electronic animator | |
| Bo Gehring | .... | synthavision animator | |
Costume and Wardrobe Department | |||
| Sandy Cole | .... | costume designer: Julie Christie | |
| Joie Hutchinson | .... | costumer: women | |
| Bucky Rous | .... | costumer: men | |
Editorial Department | |||
| Gary Bell | .... | associate film editor | |
| Freeman A. Davies | .... | associate film editor (as Freeman Davies Jr.) | |
| Frank Mazzola | .... | montage (as Francisco Mazzola) | |
Music Department | |||
| Dan Carlin Sr. | .... | music editor (as Dan Carlin) | |
| Jerry Fielding | .... | conductor | |
| Harry V. Lojewski | .... | music supervisor | |
Other crew | |||
| Grant Bassett | .... | genigraphics animatior | |
| Jordan Belson | .... | special proteus monitor footage | |
| Dixie J. Capp | .... | assistant video coordinator | |
| Oga Danylo | .... | secretary to producer | |
| Kathy Green | .... | technical consultant | |
| Regina Gruss | .... | publicist | |
| Domenic Iaia | .... | technical associate | |
| Mary Meacham | .... | title designer | |
| Christopher Outwater | .... | laser consultant | |
| Lee Ritenour | .... | electronic performances | |
| Brent Sellstrom | .... | video coordinator | |
| Robert Stewart | .... | technical consultant | |
| Ian Underwood | .... | electronic performances | |
| Marshall J. Wolins | .... | script supervisor (as Marshall Wolins) | |
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| The Terminator | 2001: A Space Odyssey | The Howling | Frankenstein | Colossus: The Forbin Project |
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| Full cast and crew | Company credits | External reviews |
| IMDb Horror section | IMDb USA section | Add this title to MyMovies |
Demon Seed is a solid, independent science fiction thriller, regretfully overshadowed by the tragic fade of its director Donald Cammell. He was a devoted filmmaker who never really could depend on much support from both critics and distributors. His career started in a minor key, with `Performance' suffering from a lot of re-editing. Similar problems with his last film `Wild Side' drove him into committing suicide.
Don't let the technical mumbo-jumbo at the beginning of `Demon Seed' trick you The first half hour leads you to believe this film is a theoretical suspense-thriller but in fact, the premise is more simple and appealing to a wider audience. `Proteus' is the name of a super computer, designed by scientist Alex Harris, in order to help him with his research. Yet, Proteus is so smart he soon develops an own will. Continuously growing stronger, Proteus perpetrates Alex's house and keeps his wife as a hostage. Proteus's goal is to impregnate Suzan (Julie Chrisie)
Proteus is like a feared computer-virus in a pre-internet era! A super computer thinking & handling for itself! Which is, according to me, a very successful horror formula. The absence of a villain in the shape of a man helps increasing the tension. The setting of the over-protected house is great and causes uncomfortable feelings of claustrophobia. Julie Christie (the female star of `Don't Look Now') is great and almost carries the entire film. The visual effects in `Demon Seed' may look a bit dated by now, but the film still contains one of the greatest decapitations ever and an outstanding ending! I swear to you if you thought the whole movie was only so-so, the last 5 minutes will make you think more highly of it.