Guests | - • Scott Buchanan, Jessica Bailey, Neil Edmonds, Philip Elliot, Tom Bawden, Gordon England – Cybermen
- • Gordon England – Brigadier Lethbridge-Stewart
- • Leon Asiq, Karl Otter, Chris McLay, Zoe Binns, Jonathan Barley, James Atkinson, Doug McLaughlan, Martin Dodgson – Research Assistants
- • Chris Hoyle – Prof. Sid Topham
- • Johnathan Banes, Alex Andreou – Cyber Leader
- • Philip Newton – Dr. Theodore McRowin
- • Susan Gibson – Dr. Judith Kent
- • Johnathan Banes, Nadia House, Ashley Frame, Jamie Roberts, James Ferity, Tom Warren, Nicky Eckes, Neil Edmonds, Scott Buchanan – U.N.I.T Troops
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