Episode 20
S12 E20 May 10, 1975 0h 25m
★ 7.3
Source:
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Guest Stars
Kevin Stoney
Tyrum
William Marlowe
Lester
Ronald Leigh-Hunt
Commander Stevenson
David Collings
Vorus
Michael Wisher
Magrik
Christopher Robbie
Cyberleader
Brian Grellis
Sheprah
Melville Jones
First Cyberman
