Diretor/a
Charles Crichton
DIRETOR/A
Peter Medak
Elenco (na ordem dos créditos)
Martin Landau
Commander John Koenig
Barbara Bain
Dr. Helena Russell
Catherine Schell
Maya
Tony Anholt
Tony Verdeschi
Nick Tate
Alan Carter
Zienia Merton
Sandra Benes
Brian Blessed
Mentor
Anouska Hempel
Annette Fraser
Jeffery Kissoon
Dr. Ben Vincent
Peter Porteous
Petrov
Tony Osoba
1st Security Guard
John Judd
2nd Security Guard
Trevor Thomas
Refuel Eagle Pilot
Andrew Lodge
Grasshopper
John Hug
Bill Fraser
Gerard Paquis
Lew Picard
Nick Brimble
Ray Torens
Anton Phillips
Dr. Bob Mathias
Sarah Bullen
Main Mission Operative Kate Bullen (uncredited) (archiveFootage)
George Lane Cooper
1st Overseer (uncredited) (archiveFootage)
John Dixon
Small Alien (uncredited) (archiveFootage)
Christopher Figg
Alphan (uncredited) (archiveFootage)
Nick Hobbs
5th Security Guard (uncredited) (archiveFootage)
Alf Joint
2nd Overseer (uncredited) (archiveFootage)
Jack Klaff
4th Security Guard (uncredited) (archiveFootage)
Reuben Martin
Gorilla (uncredited) (archiveFootage)
Neil McCaul
Zombie Alien (uncredited) (archiveFootage)
Geoffrey Moon
Short Alien (uncredited) (archiveFootage)
Barry Morse
Prof. Victor Bergman (uncredited) (archiveFootage)
Quentin Pierre
3rd Security Guard (uncredited) (archiveFootage)
Pam Rose
Command Center Operative (uncredited) (archiveFootage)
Roy Stewart
Tall Alien (uncredited) (archiveFootage)
Terry Walsh
Technician (uncredited) (archiveFootage)