Chris
J.C.
Cynthia
Ray Cameron
Detective Landis
Sgt. Raimi
Coroner
Brad (as Allan J. Kayser)
Johnny
Pam
Karen
Young Scientist
Steve
House Mother
Psycho Zombie
Alien Zombie
Alien Pursuer #1
Alien Pursuer #2
Sorority Girl on Phone
Sorority Girl with Hairbrush
Young Ray Cameron
Lisa
Judy
Kathy (as Elizabeth Cox)
Jennifer
Biff
Dick
Todd
Chett
Cop Outside Sorority (as Tex Donaldson)
Cop at Police Station
Irksome Cop at Cryogenics Lab
Irksome Cop at Murder Scene
Patrolman with Searchlight
Patrol Car Driver
Cop in Alley
Beta Zombie
Mr. Miner
Informative Student
Sorority Girl at Squad Car (as Dawn Schroder)
Dormie #1
Dormie #2
Walt
Cop in Police Station (uncredited)
Extra (uncredited)
Frat Party Wallflower (uncredited)
Lori (uncredited)
One of the creeps (uncredited)
Blair (uncredited)