Four to Doomsday

117^[1] – *Four to Doomsday*
117 – Four to Doomsday
Doctor Who serial
Cast
	Doctor Peter Davison – Fifth Doctor;
	Companions Matthew Waterhouse – Adric; Sarah Sutton – Nyssa; Janet Fielding – Tegan Jovanka;
	Guest Stratford Johns – Monarch; Annie Lambert – Enlightenment; Paul Shelley – Persuasion; Philip Locke – Bigon; Nadia Hammam – Villagra; Burt Kwouk – Lin Futu; Ilario Bisi-Pedro – Kurkutji;
Production
Directed by	John Black
Written by	Terence Dudley
Script editor	Antony Root
Produced by	John Nathan-Turner
Executive producer(s)	None
Music by	Roger Limb
Production code	5W
Series	Season 19
Running time	4 episodes, 25 minutes each
First broadcast	18 January 1982
Last broadcast	26 January 1982
Chronology
← Preceded by; Castrovalva	Followed by →; Kinda
	List of episodes (1963–1989)

Four to Doomsday is the second serial of the 19th season of the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts on BBC1 from 18 to 26 January 1982.

The serial is set almost entirely on the spaceship of the alien Urbankan Monarch (Stratford Johns). In the serial, Monarch plots to invade Earth for its minerals using a deadly toxin to wipe out humanity so he can continue to make improvements to his ship.

^ From the Doctor Who Magazine series overview, in issue 407 (pp26-29). The Discontinuity Guide, which counts the unbroadcast serial Shada, lists this as story number 118. Region 1 DVD releases follow The Discontinuity Guide numbering system.

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[1] From the Doctor Who Magazine series overview, in issue 407 (pp26-29). The Discontinuity Guide, which counts the unbroadcast serial Shada, lists this as story number 118. Region 1 DVD releases follow The Discontinuity Guide numbering system.

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