Part Three
Series Episode Number: 456World Premiere: Sat 17 Sep 1977 - 6:17pm BST [BBC One] (United Kingdom)
First Broadcast: Wed 18 Jun 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 23 minutes 12 seconds
9.80 Million (UK)
Appreciation Index: 60 (UK)Chart Position: 23 () (UK)
Recorded on Sat 04 Jun 1977 in Pebble Mill
The Doctor seals the survivors inside the lighthouse but discovers that he may unwittingly have trapped the creature inside with them.
| Characters | ||
|---|---|---|
| Doctor Who |  | Tom Baker |
| Leela |  | Louise Jameson |
| Reuben |  | Colin Douglas |
| Vince |  | John Abbott |
| Lord Palmerdale |  | Sean Caffrey |
| Skinsale |  | Alan Rowe |
| Harker |  | Rio Fanning |
| Adelaide |  | Annette Woollett |
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