Ryan Kelley
Ben Tennyson
Galadriel Stineman
Gwen Tennyson
Nathan Keyes
Kevin E. Levin
Alyssa Diaz
Elena Validus
Herbert Siguenza
Victor Validus
Barry Corbin
Grandpa Max Tennyson
Dee Bradley Baker
Big Chill / Humongousaur (voice)
Alex Winter
Nanomech (voice)
Wendy Cutler
Alien Chip Queen (voice)
Joyce Kurtz
Computer (voice)
Patrick Cox
Big Ed
Jeremy DeCarlos
Helio
Eric Mendenhall
Fitz
Tony Larkin
Ship-It Clerk
Aaron Muñoz
Psycho 1
Justin Welborn
Psycho 2
Michelle Wang
Molly
Wilbur Fitzgerald
Financial Guy in Suit
Deborah Duke
Nurse
Nicole Krausen
International Plumber 1
Shankar N. Mahadevan
International Plumber
Brian Beegle
Genaro
Shaun Bowman
Zombie
Keylun Johnson
Herself
Cesar Aguirre
Mechanic Zombie
Grace Baine
Alien (uncredited)
Erin Leigh Bushko
Factory Worker Zombie
Jon Gould
Stand-In / Factory Worker / Mechanic
Jevocas Green
Assembly Line Zombie
Ashley Harvin
Factory Worker Zombie
Shawn Knowles
Zombie Street Hoodlum
Lynn McArthur
Waitress Zombie (uncredited)
Katherine Neslund
Zombie Assembly Line Worker
Bill Pacer
Factory Worker Zombie (uncredited)
Timothy Douglas Perez
Forklift Operator (uncredited)
Sean M. Sellers
Factory Worker Zombie
Sonya Thompson
Factory Worker Zombie
Steve Warren
Factory Worker Zombie
Ken R. Wheeler
Forklift Operator
Erika J. Wood
Factory Working Zombie / Factory Chasing Zombie
Travis Grant
Zombie College Student