IMDb > Of Unknown Origin (1983)
Of Unknown Origin
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Of Unknown Origin (1983) More at IMDbPro »

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Of Unknown Origin -- A psychological suspense thriller based on the best-selling novel, "The Visitor" stars Peter Weller ("Robocop") and Playboy playmate Shannon Tweed.


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6.2/10   1,674 votes »
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Up 8% in popularity this week. See why on IMDbPro.
Chauncey G. Parker III (novel)
Brian Taggert (screenplay)
View company contact information for Of Unknown Origin on IMDbPro.
Release Date:
24 November 1983 (USA) See more »
The terrifying last word in home invasion from the director of "Tombstone" and "Cobra." See more »
A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel. Full summary » | Add synopsis »
Plot Keywords:
2 wins See more »
(13 articles)
The Scream Cast: Episodes 90 and 91
 (From Blogomatic3000. 6 March 2016, 12:34 PM, PST)

The Scream Cast: Episodes 88 and 89
 (From Blogomatic3000. 23 February 2016, 1:39 PM, PST)

Canadian Cult Cinema: The Overlooked & Underrated
 (From SoundOnSight. 21 April 2015, 11:00 AM, PDT)

User Reviews:
Classic of its kind See more (35 total) »


  (in credits order) (complete, awaiting verification)

Peter Weller ... Bart Hughes

Jennifer Dale ... Lorrie Wells

Lawrence Dane ... Eliot Riverton

Kenneth Welsh ... James Hall
Louis Del Grande ... Clete

Shannon Tweed ... Meg Hughes
Keith Knight ... Hardware Salesman

Maury Chaykin ... Dan Errol

Leif Anderson ... Peter Hughes
Jimmy Tapp ... Meg's Father
Gayle Garfinkle ... Janis Wycoff
Earl Pennington ... Mr. Thompson
Jacklin Webb ... Newspaper Vendor
Bronwen Mantel ... Florence Riverton
Monik Nantel ... Secretary

Aimée Castle ... Birthday Party Child (as Aimee Castle)
Jesse Grasis ... Birthday Party Child
Tara O'Donnell ... Birthday Party Child
rest of cast listed alphabetically:
Amber T. Chase ... Dan Errol's Wife (uncredited)

Directed by
George P. Cosmatos 
Writing credits
Chauncey G. Parker III (novel "The Visitor")

Brian Taggert (screenplay)

Produced by
Pierre David .... executive producer
Claude Héroux .... producer
Original Music by
Kenneth Wannberg  (as Ken Wannberg)
Cinematography by
René Verzier 
Film Editing by
Roberto Silvi 
Hubert de La Bouillerie (uncredited)
Casting by
Deirdre Bowen 
Ginette D'Amico 
Production Design by
Anne Pritchard 
Art Direction by
Rose Marie McSherry  (as Rosemarie McSherry)
Set Decoration by
Serge Bureau 
Costume Design by
Paul-André Guérin 
Makeup Department
Michèle Dion .... makeup artist
Chantal Ethier .... makeup artist
Martin Ménard .... hair stylist
Constant Natale .... hair stylist
Production Management
Roger Héroux .... production supervisor
François Ouimet .... unit manager (as Francois Ouimet)
Bill Wiggins .... post-production supervisor
Second Unit Director or Assistant Director
John Fretz .... first assistant director
Frank Ruszczynski .... assistant director
Michael Sarao .... assistant director
Art Department
Tina Boden .... art department coordinator
Peter Borowski .... sculptor (as Peter Borowsky)
Jacques Chamberland .... property master
Tom Coulter .... set dresser
Violette Daneau .... set dresser
Michael Devine .... construction crew
Frank DiGiacomo .... construction crew
Peter Dowker .... sculptor
Jean-Vincent Fournier .... assistant set props (as Jean Vincent Fournier)
Denis Hamel .... set dresser
Serge LaForest .... construction crew
Larry Lamont .... construction crew
P. Karen Langshaw .... sculptor
Abraham Lee .... set dresser
Jak Oliver .... construction crew
Marc Rainville .... construction crew
Barbara Shrier .... set dresser
Jean-Baptiste Tard .... set dresser (as Jean Baptiste Tard)
Harold Thrasher .... construction coordinator
Maurice Tremblay .... set dresser
Kathy Wolf .... scenic artist (uncredited)
Sound Department
Peter Burgess .... sound effects editor
Terry Burke .... foley artist
Don Cohen .... sound
Paul Coombe .... sound re-recording mixer
Gary Daprato .... assistant sound editor
Leslie Hodgson .... supervising sound editor
Mike Hoogenboom .... sound re-recording mixer (as Michael Hoogenboom)
Kerry Kohler .... assistant sound editor
Dick Lewzey .... sound recording engineer
Alban Streeter .... dialogue editor (as Al Streeter)
Haydn Streeter .... assistant sound editor
Eric Zimmer .... boom operator
Special Effects by
Louis Craig .... special effects
Stephan Dupuis .... special effects makeup
Jacques Godbout .... special effects
Jean Lysight .... stunts
Marie-Patricia St-Laurent .... stunts
Camera and Electrical Department
Claude Alarie .... best boy
Peter Benison .... camera operator
Claude Brasseur .... electrician
Marc Charlebois .... electrician
Jean Courteau .... electrician
Jean-Maurice de Ernsted .... grip
Marc de Ernsted .... key grip
Gilles Fortier .... electrician
Jacques Fortier .... gaffer
Denis Gingras .... focus puller
Paul Gravel .... focus puller
Serge Ladouceur .... camera operator
Glen MacPherson .... focus puller
Piroska Mihalka .... still photographer
Patti Morein .... loader
Christine Pelletier .... loader
Jean-François Pouliot .... loader (as Jean Francois Pouliot)
Jean Trudeau .... electrician
René Verzier .... camera operator (as Rene Verzier)
Normand Viau .... electrician
Serge Ladouceur .... director of photography: second unit (uncredited)
Casting Department
Rosina Bucci .... casting assistant
Costume and Wardrobe Department
Laura Drew .... wardrobe
Louise Gagne .... wardrobe
Hazel Pethig .... wardrobe (as Hazel Pethig-Cote)
Editorial Department
Chantal Bowen .... assistant editor
Teresa De Luca .... assistant editor
Music Department
David Franco .... music supervisor
Albert Woodbury .... orchestrator
Other crew
Mable Arial .... assistant accountant
David Bailey .... production assistant
France Boudreau .... continuity
Geoff Bowie .... production assistant
Maurice Boyer .... production assistant
Michel Boyer .... production assistant
Patricia Cahill .... production secretary
Brian Campbell .... production assistant
Richard Carriére .... production assistant (as Richard Carriere)
Frank D'Amico .... production assistant
Pierre David .... presenter
Denise Di Novi .... assistant to director
Robbie Ditchburn .... production assistant (as Robert Ditchburn)
Bob Dunn .... animal trainer (as Robert Dunn)
Linda Ekdahl .... production assistant
Pierre Guevremont .... production accountant
Paul Hotte .... production assistant
Nicholas Koppen .... production assistant
Nathalie Laporte .... assistant accountant
Gilles Léonard .... production accountant (as Gilles Leonard)
Marilyn Majerczyk .... production assistant
Serge Major .... administrator
Michel Martin .... production assistant
Monik Nantel .... assistant to executive producer
Lawrence Nesis .... presenter
Pierre Tessier .... production assistant
Bob Tschanz .... animal handling supervisor
Crew believed to be complete

Production CompaniesDistributorsSpecial EffectsOther Companies

Additional Details

Also Known As:
Sweden:89 min | USA:88 min
Aspect Ratio:
1.85 : 1 See more »
Sound Mix:
Filming Locations:

Did You Know?

The film won two awards at the Paris Film Festival in 1983. They were the Best Actor award for Peter Weller and the prestigious Grand Prix award for the film's director George P. Cosmatos.See more »
Meg Hughes:[Meg sees the house is a wreck] Oh, my God! Bart, what happened?
Bart Hughes:I had a party.
See more »
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7 out of 10 people found the following review useful.
Classic of its kind, 4 August 2003
Author: ctomvelu from usa

A horror spoof classic, thanks to an incredible performance by Peter Weller as a New York executive being driven to the brink of madness. His battle with a supersized, quick-thinking rat is almost incidental to what is going with him throughout the film. The battle between man and rat at the end is predictable but delicious in its ferocity, and the scene where Weller gears up to do battle is the most memorable moment in a movie full of memorable moments -- including one where he almost loses his hand!

Was the above review useful to you?
See more (35 total) »

Message Boards

Discuss this movie with other users on IMDb message board for Of Unknown Origin (1983)
Recent Posts (updated daily)User
I saw this in a rat infested theater! DrHerbertWest
Forgotten Flix in search of rats Danish_Delight
Ben The Two of Us Need Search No More fishmarauder
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