Doctor Doctor Who Guide
Last updated 31 May 2015


Episode Four

Episode Four

Series Episode Number: 231

World Premiere: Sat 18 Jan 1969 - 5:16pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 26 Sep 2014 - 8:30pm EDT [Retro TV]
Running Time: 22 minutes 39 seconds

7.10 Million (UK)

Appreciation Index: 55 (UK)

Chart Position: 68 () (UK)

Recorded on Fri 13 Dec 1968 in Lime Grove D
Archive State: 16mm t/r



The Krotons are preparing to leave the planet and demand that the Gonds hand over the Doctor and Zoe, so that their mental energy can be drained.

The episode ends with the TARDIS dematerialising.


Production Team hide uncredited
WriterRobert Holmes
DirectorDavid Maloney
ProducerPeter Bryant
DesignerRaymond London
Script EditorTerrance Dicks
Film EditorMartyn Day
Film SoundRon Blight (uncredited)
Film CameramanAlan Jonas
SoundJohn Holmes
LightingHoward T. King
CostumesBobi Bartlett
Make-upSylvia James
Special Effects designed byBill King (Trading Post)
Special SoundBrian Hodgson
Special Sound BBC Radiophonic Workshop
Title MusicRon Grainer
and the BBC Radiophonic Workshop
Assistant Floor ManagerDavid Tilley (uncredited)
Production AssistantEdwina Verner (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)
AssistantRaquel E. Ebbutt (uncredited)
Grams OperatorRon Arnett (uncredited)
Technical Manager(TM2)Fred Wright (uncredited)
Floor AssistantMaurice Gallagher (uncredited)
Vision MixerDavid Langford (uncredited)
Scene SupervisorRon Hasler (uncredited)
BookerBarbara Buchanan (uncredited)
Design AssistantJane Anderson (uncredited)
PropsJoe Hughes (uncredited)
PropsSheila Bray (uncredited)
GraphicsDon Shaw (uncredited)
GraphicsPeter Netley (uncredited)
Film Camera AssistantJohn Walker (uncredited)
Film Sound AssistantIan Morton (uncredited)