- Anthony Allen Barlow
- special effects makeup artist
- Bruce Barlow
- lab technician: Mechanical and Makeup Imageries Inc.
- John Carl Buechler
- ghoulies designer and supervisor: Mechanical and Makeup Imageries Inc. (as John Buechler)
- William Butler
- creature location team: Mechanical and Makeup Imageries Inc. (as Bill Butler) / lab technician: Mechanical and Makeup Imageries Inc. (as Bill Butler)
- John Criswell
- animatronics: Mechanical and Makeup Imageries Inc. / creature location team: Mechanical and Makeup Imageries Inc.
- Michael Deak
- creature location team: Mechanical and Makeup Imageries Inc. (as Mike Deak) / lab technician: Mechanical and Makeup Imageries Inc. (as Mike Deak)
- Joe Dolinich
- modeler: Mechanical and Makeup Imageries Inc.
- Lynette Eklund
- specialty costume fabricator: Mechanical and Makeup Imageries Inc. (as Lynette Johnson)
- Thomas Floutz
- creature location team: Mechanical and Makeup Imageries (as Tom Floutz) / lab technician: Mechanical and Makeup Imageries (as Tom Floutz)
- John Foster
- lab technician: Mechanical and Makeup Imageries Inc.
- Kenneth J. Hall
- creature location team: Mechanical and Makeup Imageries Inc. (as Ken Hall) / shop foreman: Mechanical and Makeup Imageries Inc. (as Ken Hall)
- Greg Johnson
- lab technician: Mechanical and Makeup Imageries Inc.
- Andrew Kenworthy
- lab technician: Mechanical and Makeup Imageries Inc.
- Eryn Krueger Mekash
- lab technician: Mechanical and Makeup Imageries Inc. (as Eryn Krueger)
- Russell Seifert
- lab technician: Mechanical and Makeup Imageries Inc.
- Heidi Snyder
- lab technician: Mechanical and Makeup Imageries Inc.
- Eddie Yang
- lab technician: Mechanical and Makeup Imageries Inc.
- Michael Deak
- on-set effects supervisor (uncredited)
