Ben and a mysterious girl from his past must prevent an alien threat from destroying the world.
Ben Tennyson
Gwen Tennyson
Kevin E. Levin
Elena Validus
Victor Validus
Grandpa Max Tennyson
Big Chill / Humongousaur (voice)
Nanomech (voice)
Alien Chip Queen (voice)
Computer (voice)
Big Ed
Helio
Fitz
Ship-It Clerk
Psycho 1
Psycho 2
Molly
Financial Guy in Suit
Nurse
International Plumber 1
International Plumber
Genaro
Zombie
Herself
Mechanic Zombie
Alien (uncredited)
Factory Worker Zombie
Stand-In / Factory Worker / Mechanic
Assembly Line Zombie
Factory Worker Zombie
Zombie Street Hoodlum
Waitress Zombie (uncredited)
Zombie Assembly Line Worker
Factory Worker Zombie (uncredited)
Forklift Operator (uncredited)
Factory Worker Zombie
Factory Worker Zombie
Factory Worker Zombie
Forklift Operator
Factory Working Zombie / Factory Chasing Zombie
Zombie College Student
