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
Patrick Cox
Big Ed
Jeremy DeCarlos
Helio
Eric Mendenhall
Fitz
Tony Larkin
Ship-It Clerk
Aaron Munoz
Psycho 1
Justin Welborn
Psycho 2
Deborah Duke
Nurse
Wilbur Fitzgerald
Financial Guy in Suit
Brian Beegle
Genaro
Keylun Johnson
Herself
Shankar N. Mahadevan
International Plumber
Wendy Cutler
Alien Chip Queen (voice)
Alex Winter
Nanomech (voice)
Joyce Kurtz
Computer (voice)
Grace Baine
Alien (uncredited)
Lynn McArthur
Waitress Zombie (uncredited)
Travis Grant
Zombie College Student (uncredited)
Bill Pacer
Factory Worker Zombie (uncredited)
Timothy Douglas Perez
Forklift Operator (uncredited)
Sonya Thompson
Factory Worker Zombie (uncredited)
Steve Warren
Factory Worker Zombie (uncredited)