Ryan Kelley

Character: Ben Tennyson

Galadriel Stineman

Character: Gwen Tennyson

Nathan Keyes

Character: Kevin E. Levin

Alyssa Diaz

Character: Elena Validus

Herbert Siguenza

Character: Victor Validus

Barry Corbin

Character: Grandpa Max Tennyson

Dee Bradley Baker

Character: Big Chill / Humongousaur (voice)

Alex Winter

Character: Nanomech (voice)

Wendy Cutler

Character: Alien Chip Queen (voice)

Joyce Kurtz

Character: Computer (voice)

Patrick Cox

Character: Big Ed

Jeremy DeCarlos

Character: Helio

Eric Mendenhall

Character: Fitz

Tony Larkin

Character: Ship-It Clerk

Aaron Muñoz

Character: Psycho 1

Justin Welborn

Character: Psycho 2

Michelle Wang

Character: Molly

Wilbur Fitzgerald

Character: Financial Guy in Suit

Deborah Duke

Character: Nurse

Nicole Krausen

Character: International Plumber 1

Shankar N. Mahadevan

Character: International Plumber

Brian Beegle

Character: Genaro

Shaun Bowman

Character: Zombie

Keylun Johnson

Character: Herself

Cesar Aguirre

Character: Mechanic Zombie

Grace Baine

Character: Alien (uncredited)

Erin Leigh Bushko

Character: Factory Worker Zombie

Jon Gould

Character: Stand-In / Factory Worker / Mechanic

Jevocas Green

Character: Assembly Line Zombie

Ashley Harvin

Character: Factory Worker Zombie

Shawn Knowles

Character: Zombie Street Hoodlum

Lynn McArthur

Character: Waitress Zombie (uncredited)

Katherine Neslund

Character: Zombie Assembly Line Worker

Bill Pacer

Character: Factory Worker Zombie (uncredited)

Timothy Douglas Perez

Character: Forklift Operator (uncredited)

Sean M. Sellers

Character: Factory Worker Zombie

Sonya Thompson

Character: Factory Worker Zombie

Steve Warren

Character: Factory Worker Zombie

Ken R. Wheeler

Character: Forklift Operator

Erika J. Wood

Character: Factory Working Zombie / Factory Chasing Zombie

Travis Grant

Character: Zombie College Student