Sil
Xavier Fitch
Preston Lennox
Dr. Laura Baker
Dr. Stephen Arden
Dan Smithson, Empath
Young Sil
Aide
Mrs. Morris
Colleague
Train Hobo
Mother
Snack Shop Clerk
German Tourist
Conductor
Female Conductor
Victoria Roth, Ph.D.
Government Man
Fitch's Secretary
Wedding Dress Saleswoman
Team Driver
Cop
Motel Clerk
Lab Worker
Club Bouncer
Drunken Girl
Guy in Club
Robbie, Guy Picking Up Sil
Screaming Woman
John Carey
Hospital Admittance Clerk
Hospital Doctor
Hospital Nurse
Abducted Woman
Homeless Man
Commercial Model
Bathroom Bimbo
Waiter
Marie
Baby Boy
Creature Performer
Alien Sil (voice)
Bystander (uncredited)
Club DJ (uncredited)
Special Forces (uncredited)
Commando (uncredited)
Lt. Steele (uncredited)
Doctor (uncredited)
Soldier (uncredited)
Club Doorman (uncredited)
Conga Player (uncredited)