Trailer
Cast
Pat Gorman
Primord
Derek Martin
UNIT Soldier
Alan Chuntz
UNIT Soldier
Roy Scammell
RSF Sentry
Nicholas Courtney
Brigadier Lethbridge-Stewart / Brigade Leader Lethbridge-Stewart
John Levene
Sergeant Benton / Platoon Under Leader Benton
Barry Letts
Loudspeaker Voice
Jon Pertwee
The Doctor
Christopher Benjamin
Sir Keith Gold
Derek Newark
Greg Sutton
Terry Walsh
UNIT Soldier
Caroline John
Liz Shaw / Section Leader Elizabeth Shaw
Olaf Pooley
Professor Stahlman / Director Stahlman
David Simeon
Private Latimer