Last updated 24 March 2024


Part Four

Series Episode Number: 533

World Premiere: Sat 18 Oct 1980 - 5:44pm BST [BBC One] (United Kingdom)
First Broadcast: Sun 24 Sep 2017 - 5:30pm EDT [Retro TV]
Running Time: 19 minutes 30 seconds

4.70 Million (UK)

Appreciation Index: 63 (UK)

Chart Position: 127 () (UK)

Recorded on Fri 11 Jul 1980 in Television Centre 3



The Doctor must convince the Tigellans of his innocence if he is to prevent Meglos from using the dodecahedron to destroy their world.

Characters hide uncredited
Doctor WhoTom Baker
RomanaLalla Ward
General GruggerBill Fraser
Lieutenant BrotadacFrederick Treves
ZastorEdward Underdown
LexaJacqueline Hill
CarisColette Gleeson
DeedrixCrawford Logan
EarthlingChristopher Owen
Voice of K-9John Leeson
Tigellan GuardSimon Shaw
MeglosTom Baker (uncredited)Info
Voice of MeglosChristopher Owen (uncredited)
GaztakJames Muir (uncredited)
GaztakRanjit Nakara (uncredited)
GaztakHi Ching (uncredited)
GaztakBruce Callender (uncredited)
GaztakJohn Holland (uncredited)
GaztakTony Allef (uncredited)
DeonTerence Creasey (uncredited)
DeonEddie Sommer (uncredited)
DeonRay Knight (uncredited)
DeonChris Marks (uncredited)
DeonLewis Hopper (uncredited)
DeonStephen Nagy (uncredited)
DeonSylvia Marriott (uncredited)
Ceremonial GuardMichael Brydon (uncredited)
Ceremonial GuardDavid Cleeve (uncredited)
TigellanMichael Gordon Browne (uncredited)
TigellanHarry Fielder (uncredited)
TigellanLaurie Good (uncredited)
TigellanPeter Gates Fleming (uncredited)
TigellanGeoff Whitestone (uncredited)
Production Teamhide uncredited
WriterJohn Flanagan
WriterAndrew McCulloch
DirectorTerence Dudley
ProducerJohn Nathan-Turner
Executive ProducerBarry Letts
DesignerPhilip Lindley
Script EditorChristopher H Bidmead
Title SequenceSid Sutton
Costume DesignerJune Hudson
Makeup ArtistCecile Hay-Arthur
Studio LightingBert Postlethwaite
Studio SoundJohn Holmes
Technical Manager (TM2)Brendan Carr
Senior CameramanAlec Wheal
Videotape EditorSam Upton
Visual Effects DesignerSteven Drewett
Video EffectsDavid Jervis
Vision MixerGraham Giles
Production AssistantMarilyn Gold
Production Unit ManagerAngela Smith
Director's AssistantHermione Stewart
Director's AssistantKaren Loxton (uncredited)Info
Assistant Floor ManagerVal McCrimmon
Assistant Floor ManagerAlex Bridcut (uncredited)Info
Incidental MusicPeter Howell
Special SoundDick Mills
K9 OperatorSteve Cambden (uncredited)
Title MusicRon Grainer (uncredited)
Title Music ArrangerPeter Howell (uncredited)
Floor AssistantAlan Sandbrook (uncredited)
Grams OperatorAndrew Hunter (uncredited)
Show Working SupervisorChick Hetherington (uncredited)
Costume AssistantSarah Leigh (uncredited)
Makeup (Assistant)Catherine Whitfield (uncredited)
Makeup (Assistant)Margaret Magee (uncredited)
Makeup (Assistant)Jan Lee (uncredited)
Makeup (Assistant)Janet Philips (uncredited)
Design AssistantMary Greaves (uncredited)