Doctor Doctor Who Guide
Last updated 31 May 2015

Part Four

Part Four

Series Episode Number: 557

World Premiere: Tue 12 Jan 1982 - 7:05pm GMT [BBC One: Not Wales] (United Kingdom)
First Broadcast: Thu 9 Apr 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 12 seconds

10.40 Million (UK)

Chart Position: 46 () (UK)

As recursive occlusion threatens to destroy everything and everyone in Castrovalva, the Master's space/time trap is revealed, with Adric at its heart...

Characters hide uncredited
The DoctorPeter Davison
TeganJanet Fielding
NyssaSarah Sutton
AdricMatthew Waterhouse
The MasterAnthony Ainley
ShardovanDerek Waring
MergraveMichael Sheard
RutherFrank Wylie
TownsmanDavid Bulbeck (uncredited)
TownsmanDavid Payne (uncredited)
TownsmanGeorge Ballantine (uncredited)
TownsmanGiles Melville (uncredited)
TownsmanJames Gregory (uncredited)
TownsmanMalcolm Ross (uncredited)
TownsmanMike Vinden (uncredited)
TownswomanDelphine Auchterlonie (uncredited)
TownswomanDoreen Croft (uncredited)
TownswomanDorothy Grumbar (uncredited)
TownswomanHelen Hembrough (uncredited)
TownswomanIlana Barry (uncredited)
TownswomanJean Channon (uncredited)
TownswomanJennie Piper (uncredited)
TownswomanJune Parkhurst (uncredited)
TownswomanLucy Gwynn (uncredited)
TownswomanLynn Austin (uncredited)
TownswomanMaureen Stevens (uncredited)
TownswomanRosemary Smith (uncredited)
TownswomanSally Gardiner (uncredited)
TownswomanSheila Vivian (uncredited)
TownswomanValerie Needham (uncredited)
WarriorColin Cook (uncredited)
WarriorDavid Harrison (uncredited)
WarriorErnie Goodyear (uncredited)
WarriorMark Allington (uncredited)
WarriorRay Martin (uncredited)