Christopher 'Chris' Romero
James Carpenter 'J.C.' Hooper
Cynthia 'Cindy' Cronenberg
Det. Ray Cameron
Detective Landis
Brad
Sgt. Raimi
Coroner
Walt
Johnny
Pam
Karen
Young Scientist
Steve
House Mother
Sorority Girl with Hairbrush
Lisa
Kathy
Todd
Patrolman with Searchlight
Beta Zombie
Alien Zombie
Extra (uncredited)
Young Ray Cameron
Chett
Lori
Alien Pursuer #1
Alien Pursuer #2
Cop in Station
Alley Cop
Mr. Miner