- Bret Alexander
- model & prop maker
- Wayne Alexander
- model & prop maker
- Steve Berrit
- lab technician
- Mark Carbirino
- lab technician
- Fox Carney
- model & prop maker
- Frank Ceglia
- special effects supervisor
- Sandy Collora
- lab technician: head Martian crew (as Sandy Collara)
- John Criswell
- alien special effects: supervisor / animatronic aliens: Shortstuff creator
- Jon Dawe
- animatronic aliens: puppeteer / animatronic eye
- James Eustermann
- model & prop maker
- Thomas Floutz
- painter (as Thom Floutz)
- John Frassrand
- animatronic aliens: Shortstuff creator / animatronic aliens: puppeteer
- Dan Frye
- lab technician
- Deborah Galvez
- model & prop maker
- Gordon Germaine
- model & prop maker
- Carl Horner
- miniature effects supervisor: second unit (as Carl Horner Jr) / model & prop maker
- Terry Huud
- miniature effects supervisor / model & prop maker
- Cindy Johnson
- model & prop maker
- Greg Johnson
- alien special effects: supervisor
- Andrew Kenworthy
- lab technician: puppeteer
- Dave Kindlon
- animatronic aliens
- Rima Litonjua
- model & prop maker
- Paul Lopez
- second unit effects: Martian
- Bob Lynn
- lab technician: puppeteer
- Mark Maitre
- painter
- Roger McCoin
- lab technician (as Roger MaCoin)
- Brian McFadden
- model & prop maker
- Bob McKee
- model shop supervisor (as Robert Mckee)
- Hal Miles
- animatronic aliens
- Kenny Myers
- consultant: Martian anatomical
- Ann Riley
- model & prop maker
- Russel Serfart
- foam technician
- Wayne Toth
- lab technician: puppeteer
- Wayne Tsusaki
- model & prop maker
- Jeff Varga
- special effects crew
- Steve Wang
- designer: paint
- Ron Wild
- lab technician: key sculptor
- A.J. Workman
- special effects
