Episode 4
S12 E4 January 18, 1975 0h 25m
★ 7.0
Source:
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Guest Stars
Nicholas Courtney
Lethbridge-Stewart
John Levene
Sergeant Benton
Patricia Maynard
Miss Winters
Michael Kilgarriff
Robot
Edward Burnham
Professor Kettlewell
Alec Linstead
Jellicoe
