Lifeforce
A space shuttle mission investigating Halley's Comet brings back a malevolent race of space vampires who transform most of London's population into zombies. The only survivor of the expedition and British authorities attempt to capture a mysterious but beautiful alien woman who appears responsible.
Steve Railsback
Col. Tom Carlsen
Peter Firth
Col. Colin Caine
Frank Finlay
Dr. Hans Fallada
Mathilda May
Space Girl
Patrick Stewart
Dr. Armstrong
Michael Gothard
Dr. Bukovsky
Nicholas Ball
Roger Derebridge
Aubrey Morris
Sir Percy Heseltine
Nancy Paul
Ellen Donaldson
John Hallam
Lamson
John Keegan
Guard
Bill Malin
Second Vampire
Derek Benfield
Physician
Jerome Willis
Pathologist
John Woodnutt
Metallurgist
John Forbes-Robertson
The Minister
Peter Porteous
Prime Minister
Katherine Schofield
Prime Minister's Secretary
Owen Holder
First Scientist
Jamie Roberts
Rawlings
Russell Sommers
Navigation Officer
Patrick Connor
Fatherly Guard
Sidney Kean
Brash Guard
Paul Cooper
Second Guard
Chris Sullivan
Kelly
Burnell Tucker
N.A.S.A. Man
Chris Jagger
First Vampire
Barrie Holland
London Man (uncredited)
John Larroquette
Narrator (uncredited)