Last updated 24 March 2024


Episode Seven

Series Episode Number: 226

World Premiere: Sat 14 Dec 1968 - 5:14pm BST [BBC One] (United Kingdom)
Running Time: 24 minutes 46 seconds

7.20 Million (UK)

Appreciation Index: 55 (UK)

Chart Position: 51 () (UK)

Recorded on Fri 01 Nov 1968 in Lime Grove D
Archive State: 16mm t/r



The Cybermen have immobilised the Earth's population with a hypnotic signal. Their fleet arrives and they invade in force. The Doctor desperately attempts to persuade Vaughn to help him resist the invaders.

Characters hide uncredited
Dr. WhoPatrick Troughton
IsobelSally Faulkner
ZoeWendy Padbury
JamieFrazer Hines
Captain TurnerRobert Sidaway
Sergeant WaltersJames Thornhill
Brigadier Lethbridge-StewartNicholas Courtney
Tobias VaughnKevin Stoney
PackerPeter Halliday
Professor WatkinsEdward Burnham
Major BranwellClifford Earl
Sergeant PetersNorman Hartley
CybermanRalph Carrigan
CybermanCharles Finch
CybermanPat Gorman
CybermanRichard King
CybermanJohn Spadbury
CybermanPeter Thornton
UNIT/Bunker CrewGary Dean (uncredited)
UNIT/Bunker CrewBarry Dupres (uncredited)
UNIT/Bunker CrewJohn Kielty (uncredited)
UNIT/Bunker CrewMike Lee (uncredited)
UNIT/Bunker CrewCrawford Lyle (uncredited)
UNIT/Bunker CrewAlistair McFarlane (uncredited)
UNIT/Bunker CrewTony Manning (uncredited)
UNIT/Bunker CrewVictor Munt (uncredited)
UNIT/Bunker CrewDavid Pelton (uncredited)
UNIT/Bunker CrewClark Reed (uncredited)
UNIT/Bunker CrewPeter Roy (uncredited)
UNIT/Bunker CrewDerrick Slater (uncredited)
Production Teamhide uncredited
WriterDerrick Sherwin
From a story byKit Pedler
DirectorDouglas Camfield
ProducerPeter Bryant
DesignerRichard Hunt
Script EditorTerrance Dicks
Incidental MusicDon Harper
Title MusicRon Grainer
and the BBC Radiophonic Workshop
Film CameramanAlan Jonas (uncredited)
Film Sound RecordistBill Chesneau (uncredited)
Film EditorMartyn Day (uncredited)
CostumesBobi Bartlett (uncredited)
MakeupSylvia James (uncredited)
LightingRobbie Robinson (uncredited)
SoundBryan Forgham (uncredited)
Special SoundBrian Hodgson (uncredited)
Visual EffectsBill King (uncredited)
Visual Effects Trading Post (uncredited)
Production AssistantChris D'Oyly-John (uncredited)
Vision MixerDavid Langford (uncredited)
Grams OperatorDave Silk (uncredited)
Technical Manager (TM2)Don Babbage (uncredited)
Director's AssistantSue Sly (uncredited)
Assistant Floor ManagerSue Willis (uncredited)
Floor AssistantMichael Ward (uncredited)
Film Operations ManagerHugh Wilson (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)