В ролях
Jon Pertwee
The Doctor
Caroline John
Liz Shaw
Nicholas Courtney
Brigadier Lethbridge-Stewart
Ronald Allen
Ralph Cornish
John Abineri
Carrington
Robert Cawdron
Taltalian
Michael Wisher
John Wakefield
Cheryl Molineaux
Miss Rutherford
Ray Armstrong
Grey
Robert Robertson
Collinson
Ric Felgate
Van Lyden / Alien Ambassador
Dallas Cavell
Quinlan