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Full cast & crew
The Leeches
The Invaders
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Director (1)
Writers (2)
Cast (15)
Producers (3)
Composer (1)
Cinematographer (1)
Editor (1)
Casting Director (1)
Art Director (1)
Set Decorator (1)
Makeup Department (2)
Production Management (5)
Second Unit Directors or Assistant Directors (3)
Art Department (2)
Sound Department (2)
Special Effects (1)
Visual Effects (1)
Stunts (1)
Camera and Electrical Department (3)
Costume Department (1)
Editorial Department (1)
Music Department (1)
Script and Continuity Department (1)
Additional Crew (1)
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See agents for this cast & crew on IMDbPro
Director
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Paul Wendkos
Paul Wendkos
director (directed by)
Writers
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Daniel B. Ullman
Daniel B. Ullman
written by (as Dan Ullman)
Larry Cohen
Larry Cohen
created by (creator)
Cast
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(in credits order)
Roy Thinnes
Roy Thinnes
David Vincent
Peter Mark Richman
Peter Mark Richman
Tom Wiley
(as Mark Richman)
Diana Van der Vlis
Diana Van der Vlis
Eve Doneghan
(as Diana van der Vlis)
Arthur Hill
Arthur Hill
Warren Doneghan
Robert H. Harris
Robert H. Harris
Hastings
Theodore Marcuse
Theodore Marcuse
Noel Markham
(as Theo Marcuse)
Peter Brocco
Peter Brocco
Millington
Noah Keen
Noah Keen
Psychiatrist
William Wintersole
William Wintersole
Alien in Charge
Hank Brandt
Hank Brandt
Man
Ray Kellogg
Ray Kellogg
Guard
Rest of cast listed alphabetically
Craig Chudy
Craig Chudy
Alien
(uncredited)
Ron Nyman
Ron Nyman
Alien
(uncredited)
Dick Wesson
Dick Wesson
Introductory Narrator
(voice) (uncredited)
William Woodson
William Woodson
Narrator
(voice) (uncredited)
Producers
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Alan A. Armer
Alan A. Armer
producer
Quinn Martin
Quinn Martin
executive producer
Anthony Spinner
Anthony Spinner
associate producer
Composer
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Dominic Frontiere
Dominic Frontiere
composer (music by)
Cinematographer
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Andrew J. McIntyre
Andrew J. McIntyre
director of photography
Editor
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Jerry Young
Jerry Young
film editor
Casting Director
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Patricia Mock
Patricia Mock
casting director (as Patricia Rose Mock) (casting)
Art Director
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James Dowell Vance
James Dowell Vance
art director (as James D. Vance)
Set Decorator
Edit
Carl Biddiscombe
Carl Biddiscombe
Makeup Department
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Jack Barron
Jack Barron
makeup artist
Annabell Levy
Annabell Levy
hair stylist (as Annabell)
Production Management
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Howard P. Alston
Howard P. Alston
production manager (as Howard A. Alston)
John Elizalde
John Elizalde
post-production supervisor
Arthur Fellows
Arthur Fellows
in charge of production
Adrian Samish
Adrian Samish
in charge of production
Robert G. Stone
Robert G. Stone
unit production manager
Second Unit Directors or Assistant Directors
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Carl Barth
Carl Barth
second unit director
Harold Schneider
Harold Schneider
second assistant director
Paul Wurtzel
Paul Wurtzel
assistant director
Art Department
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Arthur Friedrich
Arthur Friedrich
property master
Harold Nyby
Harold Nyby
construction coordinator
Sound Department
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Eddie Campbell
Eddie Campbell
sound editor
Al Overton
Al Overton
production mixer
Special Effects
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Ira Anderson Jr.
Ira Anderson Jr.
special effects (as Ira Anderson)
Visual Effects
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Darrell A. Anderson
Darrell A. Anderson
special photographic effects
Stunts
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Glenn R. Wilder
Glenn R. Wilder
stunt coordinator (uncredited)
Camera and Electrical Department
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Robert R. Farmer
Robert R. Farmer
chief electrician (as Robert Farmer)
Larry Milton
Larry Milton
key grip
Gail Parker
Gail Parker
second camera operator
Costume Department
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Frank Beetson Jr.
Frank Beetson Jr.
costume supervisor (as Frank Beetson)
Editorial Department
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Ray Daniels
Ray Daniels
assistant film editor
Music Department
Edit
Vince De Rosa
Vince De Rosa
musician: french horn (uncredited)
Script and Continuity Department
Edit
Marshall Schlom
Marshall Schlom
script supervisor
Additional Crew
Edit
John Conwell
John Conwell
assistant to executive producer
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