• Nicholas Courtney....Brigadier Lethbridge-Stewart(1968-1975, 1983, 1989)
• Matthew Waterhouse....Adric (1981-1982)
• Janet Fielding....Tegan Jovanka (1981-1984)
• Sarah Sutton....Nyssa of Traken (1981-1983)
• Anthony Ainley....The Master (1981-1989)
• Mark Strickson....Turlough (1983-1984)
• Nicola Bryant....Perpugilliam Brown (Peri) (1984-1986)

Episode List

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• Castrovavla

  Adric is kidnapped by the Master, who uses his mathematical skills to try to foil the Doctor. And the Doctor, experiencing a faulty regeneration, has only Teegan and Nyssa to see him and the Tardis somewhere safely.

• Four to Doomsday
• Kinda
• The Visitation
• Black Orchid

  The Tardis materialises on a railway platform, and the doctor is mistaken for a cricket champion. They're wisked away to a cricket match, and a fancy dress ball, mistaken identity, intrigue and murder

• Earthshock

  The cybermen attempt to destroy all life on earth with a space ship bomb. The Doctor, with Adric's help, diverts the ship back through time to where it destroys dinosaurs rather than man.

• Timeflight

  Concordes are disappearing en route to Heathrow airport. The doctor traces their disappearance through time finding the Master trying to harness the power of some alien beings.

• Ark of Infinity
• Snakedance
• Mawdryn Undead
• Episodes, continued

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