Steve Railsback character Col. Tom Carlsen
Peter Firth character Col. Colin Caine
Frank Finlay character Dr. Hans Fallada
Mathilda May character Space Girl
Patrick Stewart character Dr. Armstrong
Michael Gothard character Dr. Bukovsky
Nicholas Ball character Roger Derebridge
Aubrey Morris character Sir Percy Heseltine
Nancy Paul character Ellen Donaldson
John Hallam character Lamson
John Keegan character Guard
Chris Jagger character First Vampire
Bill Malin character Second Vampire
Derek Benfield character Physician
Jerome Willis character Pathologist
John Woodnutt character Metallurgist
John Forbes-Robertson character The Minister
Peter Porteous character Prime Minister
Katherine Schofield character Prime Minister's Secretary
Owen Holder character First Scientist
Jamie Roberts character Rawlings
Russell Sommers character Navigation Officer
Patrick Connor character Fatherly Guard
Sidney Kean character Brash Guard
Paul Cooper character Second Guard
Chris Sullivan character Kelly
Burnell Tucker character N.A.S.A. Man
