- Brent Armstrong
- sculptor and model maker: K. N. B. EFX Group
- Manuel Beccaro
- sculptor / special effects makeup
- Gary F. Bentley
- pyrotechnician (as Gary Bentley)
- Jared Bentley
- special effects crew
- John Bisson
- sculptor and model maker: K. N. B. EFX Group
- Roger Borelli
- sculptor: "Evil Shella", Alterian Studios
- Billy Bryan
- foam fabricator: K.N.B. EFX Group (as William Bryan)
- John Calpin
- fiberglass fabrication: Alterian Studios
- Dan Cangemi
- pyrotechnician
- Bruce Carson
- special effects
- Andy Clement
- sculptor and model maker: K. N. B. EFX Group
- Thomas R. Dickens
- special effects
- Jeff Edwards
- mechanical department: K.N.B. EFX Group
- Michael Faba
- special effects technician
- Steve Fink
- special effects makeup
- Bruce Spaulding Fuller
- sculptor and applicator: "Evil Ash", Alterian Studios
- Tony Gardner
- makeup effects: "Ash" & "Shella", Alterian Studios
- Mark Goldberg
- mechanical department: K.N.B. EFX Group / mechanical designer: Alterian Studios
- Vance Hartwell
- skeletal assistant: Alterian Studios
- John Henny Jr.
- shop coordinator: Alterian Studios
- Vern Hyde
- mechanical effects supervisor
- Garrett Immel
- prosthetic makeup applicator: Alterian Studios
- Gary Jones
- mechanical effects foreman / special effects foreman
- Marc Lougee
- special effects technician
- Susan Mallon
- special makeup effects coordinator: K.N.B. EFX Group
- Karen Mason
- seamstress: K.N.B. EFX Group
- Jim McPherson
- likeness sculptor: Alterian Studios
- Greg Nicotero
- special makeup effects supervisor: K.N.B. EFX Group (as Gregory Nicotero)
- Becky Ochoa
- hair technician: Alterian Studios
- Carolyn Oros
- foam cosmetics: Alterian Studios / special effects makeup
- Gary Pawlowski
- molds: Alterian Studios
- David Penikas
- mechanical designer: Alterian Studios
- Mark Rappaport
- mechanical department: K.N.B. EFX Group
- Tanya Ridenour
- special effects
- James Rohland
- molds: Alterian Studios
- Paul Sciacca
- sculptor and model maker: K. N. B. EFX Group
- David Smith
- sculptor and model maker: K. N. B. EFX Group
- Greg Solomon
- foam technician: Alterian Studios
- Bill Sturgeon
- creature foreman / skeleton and project foreman: "Evil Ash", Alterian Studios
- Matsune Suzuki
- story board
- Wayne Toth
- mechanical department: K.N.B. EFX Group
- John Travers
- editorial supervisor: Introvision
- Mark Villalobos
- stop-motion puppet construction
- Trevor Cripps
- special effects technician (uncredited)
- Richard Miranda
- special effects assistant (uncredited)
- Mark William Robinson
- special makeup effects assistant: "Evil Ash", Alterian Studios (uncredited)
