David Paetkau
Dale
Sam Trammell
Tim
Steven Pasquale
Dallas Howard
Reiko Aylesworth
Kelly O'Brien
John Ortiz
Sheriff Eddie Morales
Johnny Lewis
Ricky
Ariel Gade
Molly O'Brien
Kristen Hager
Jesse
Robert Joy
Col. Stevens
Ian Whyte
Predator
Tom Woodruff Jr.
Alien
Chelah Horsdal
Darcy
Meshach Peters
Curtis
Matt Ward
Mark
David Hornsby
Drew
Chris William Martin
Deputy Ray
James Chutter
Deputy Joe
Phil Buhler
Deputy
Kevin Haaland
Deputy
Gina Holden
Carrie
Kurt Max Runte
Buddy
Liam James
Sam
Tim Henry
Dr. Lennon
Tom McBeath
Karl
Ty Olsson
Nathan
Anthony Harrison
Ritchie
Lloyd Berry
Homeless Harry
Rekha Sharma
Nurse Helen
Catherine Lough Haggquist
Tina
Victoria Bidewell
Pregnant Sue
Dalias Blake
Lt. Wood
Tim Perez
Mr. Thomas
Rainbow Sun Francks
Earl
Juan Riedinger
Scotty
Val Cole
Broadcaster
Andrew Hedge
Tank Driver
Ryan Robbins
Truck Driver
Curtis Caravaggio
Special Forces Commander
Françoise Yip
Ms. Y
John Wardlow
Homeless Guy
Nesta Chapman
Homeless Lady
Ian Feuer
Additional Predator
Bobby 'Slim' Jones
Additional Predator
Glen Brkich
National Guard
Jay-Lyn Green
Pregnant Woman
Lili Wexu
Pregnant Woman
Adrian Hough
ER Resident Doc
Karen van Blankenstein
ER Doctor #2
Shareeka Epps
Kendra (uncredited)
Michal Suchánek
Nick
Frank Meschkuleit
Additional Performances (puppeteer)