Ben Affleck
Sheriff Bryce Hammond
Peter O'Toole
Dr. Timothy Flyte
Rose McGowan
Lisa Pailey
Joanna Going
Jennifer Pailery, M.D.
Liev Schreiber
Deputy Stuart 'Stu' Wargle
Nicky Katt
Deputy Steve Shanning
Clifton Powell
Gen. Leland Copperfield
Rick Otto
Scientist Lockland
Valerie Chow Kar-Ling
Scientist Yamaguchi
Adam Nelson
Scientist Burke