Part Four
Series Episode Number: 499World Premiere: Sat 13 Jan 1979 - 6:27pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 20 Apr 2001 - 10:30pm CDT [Prairie Public Television]
Running Time: 21 minutes 58 seconds
9.90 Million (UK)
Appreciation Index: 63 (UK)Chart Position: 31 () (UK)
Recorded on Wed 11 Oct 1978 in Television Centre 6
With Kroll on the rampage, the Doctor and Romana are appalled to discover that Thawn intends to fire a rocket at the creature which will also kill the Swampies. Can the Doctor find the fifth segment in time to save the day?
| Characters include uncredited | ||
|---|---|---|
| Doctor Who |  | Tom Baker |
| Romana |  | Mary Tamm |
| Thawn |  | Neil McCarthy |
| Ranquin |  | John Abineri |
| Fenner |  | Philip Madoc |
| Varlik |  | Carl Rigg |
| Skart |  | Frank Jarvis |
| Dugeen |  | John Leeson |
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