Ηθοποιοί επεισοδίου
Μάρτιν ΛάνταουJohn Koenig
Barbara BainHelena Russell
Barry MorseVictor Bergman
Nick TateAlan Carter
Prentis HancockPaul Morrow
Zienia MertonSandra Benes
Clifton JonesDavid Kano
Anton PhillipsDr. Mathias
★
Anthony ValentineMale Alien
Isla BlairFemale Alien
★
James FaganKen Johnson
★
Sarah BullenKate
Alan HarrisMain Mission Operative (uncredited)