Sean Astin
— Pilot Grigsby
Keith David
— Colonel Holloway
Danny Trejo
— Zombie Trejo
William Shatner
— Richard Chindler
Mindy Robinson
— Eliza
Bryan Callen
— Guard Callen
Ross Patterson
— Gene Vandenham
Ron Jeremy
— Himself
Jim O'Heir
— Scientist Hathaway
Martin Klebba
— Zombie Klebba
Dale Dye
— The President
Mat Best
— Himself
Lindsay Lamb
— Kesha
Tim Kennedy
— Himself
Melanie Specht
— Mrs. Vandenham
Marcus Luttrell
— Himself
Jesse Merlin
— 2LT Chandler
David Quane
— Henry Kesha
Nick Palmisciano
Jessie Wiseman
— Heather