演职人员
The Doctor
Jon Pertwee
Liz Shaw / Section Leader Elizabeth Shaw
Caroline John
Brigadier Lethbridge-Stewart / Brigade Leader Lethbridge-Stewart
Nicholas Courtney
Sergeant Benton / Platoon Under Leader Benton
John Levene
Professor Stahlman / Director Stahlman
奥拉夫·普利
Sir Keith Gold
Christopher Benjamin
Petra Williams / Dr Petra Williams
Sheila Dunn
Greg Sutton
Derek Newark
Private Latimer
David Simeon
Private Wyatt
Derek Ware
Harry Slocum
Walter Randall
Bromley
Ian Fairbairn
RSF Sentry
Roy Scammell
Patterson
Keith James
Primord
Peter Thompson
Primord
Philip Ryan
Primord
Walter Henry
Primord
Pat Gorman
Primord
Dave Carter
Loudspeaker Voice
Barry Letts
UNIT Soldier
Derek Martin
UNIT Soldier
Terry Walsh
UNIT Soldier
Ian Elliott
UNIT Soldier
Alan Chuntz
Technician Phillips
Alan Clements