Ben 10 Alien Swarm

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 Munoz

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