Written and Directed by Michael Crichton
Produced by Michael Rachmil
Executive Producer : Kurt Villadsen
Director of Photography : John A. Alonzo
Film Editing by James Coblentz, Glenn Farr
Music by Jerry Goldsmith
Casting by Jane Feinberg, Mike Fenton, Judy Taylor
Production Design by Douglas Higgins
Art Direction by Michael Bolton
Set Decoration by Jim Erickson
Costume Design by Betsy Cox
Robot Designer : David Durand
Special Effects : George Erschbamer, Bill Orr
Special Robotic Effects : Broggie Elliott Animation
Special Robotic Effects : Special Effects Unlimited
Robotic Spiders : Robotic Systems International
Titles and Optical Effects : Cinema Research Corporation
Cast
Tom Selleck (Sgt. Jack R. Ramsay)
Cynthia Rhodes (Officer Karen Thompson)
Gene Simmons (Dr. Charles Luther)
Kirstie Alley (Jackie Rogers)
Stan Shaw (Sgt. Marvin James)
G.W. Bailey (Chief of Police)
Joey Cramer (Bobby Ramsay)
Chris Mulkey (David Johnson)
Anne-Marie Martin (Hooker at Bar)
Michael Paul Chan (Vectrocon Security Guard)
Elizabeth Norment (Miss Shields, Reporter)
Carol Teasdale (Sally)
Jackson Davies (Jerry, Inspector)
Paul Batten (Harry)
Babs Chula (Construction Foreperson)
Marilyn Schreffler (Lois's voice)
Cec Verrell (Hooker)
Natino Bellantoni (Headwaiter)
Judith Johns (Data Tech)
Betty Phillips (Linda, Parapsychologist)
Andrew Rhodes (John Wilson, Cameraman)
Louise Johan (Waitress)
Stephen Thorne (Tommy)
Steve Wright (Dave, Helicopter Pilot)
Stephen E. Miller (Rudy)
Bob Metcalfe (Tracer)
David Longworth (Man)
Todd Duckworth (Paramedic)
Moira Walley (Jogger)
Albert Eggen (Floater Cop)
Jon Brydon (Cop #1)
Rodney Gage (Cop #2)
Murray Ord (Cop #3)
Daryl Hayes (Cop #4)
Keith Gordey (Cop #5)
Wayne Thomas Yorke (Cop #6)
Frank Serio (Cop #7)
Lloyd Berry (Passenger)
Dennis Kelli (Driver)
Amber Borycki (Baby)