Part Three
Series Episode Number: 552World Premiere: Sat 14 Mar 1981 - 5:11pm GMT [BBC One] (United Kingdom)
First Broadcast: Tue 7 Apr 2015 - 8:00pm EDT [Retro TV]
Running Time: 24 minutes 32 seconds
5.80 Million (UK)
Chart Position: 102 () (UK)
Recorded on Thu 22 Jan 1981 in Television Centre 6
The Master is loose on Logopolis and is determined to learn its secret. But there is more at stake than he realises and his meddling has endangered the entire universe.
| Characters include uncredited | ||
|---|---|---|
| Doctor Who |  | Tom Baker |
| The Monitor |  | John Fraser |
| The Master |  | Anthony Ainley |
| Tegan |  | Janet Fielding |
| Adric |  | Matthew Waterhouse |
| Nyssa |  | Sarah Sutton |
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