Doctor Doctor Who Guide
Last updated 31 May 2015


Episode Six

Episode Six

Series Episode Number: 298

World Premiere: Sat 15 May 1971 - 6:12pm BST [BBC One] (United Kingdom)
First Broadcast: Mon 8 Dec 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 25 minutes 22 seconds

8.70 Million (UK)


Chart Position: 23 () (UK)

Recorded on Sat 03 Apr 1971 in TC3
Archive State: RSC conver



In the underground city, the Doctor and the Master confront the guardian of the Doomsday Weapon. The miners make their last move to force the colonists to leave the planet.


Characters hide uncredited
Doctor WhoJon Pertwee
The MasterRoger Delgado
Brigadier Lethbridge-StewartNicholas Courtney
Jo GrantKaty Manning
CaldwellBernard Kay
WintonNicholas Pennell
AsheJohn Ringham
DentMorris Perry
MorganTony Caunter
Mary AsheHelen Worth
GuardianNorman Atkyns
PrimitivePat Gorman
Alien PriestRoy Heymann
PrimitiveStewart Anderson (uncredited)
ColonistCharles Pickess (uncredited)
ColonistKen Halliwell (uncredited)
ColonistJohn Caesar (uncredited)
ColonistClay Hunter (uncredited)
ColonistCharles Finch (uncredited)
ColonistLes Conrad (uncredited)
ColonistMonique Briant (uncredited)
ColonistBob Blaine (uncredited)
Stunt ManMax Diamond (uncredited)
ColonistBill Horrigan (uncredited)
ColonistValentino Musetti (uncredited)Info
IMC GuardBrian Gilmar (uncredited)
IMC GuardLes Clarke (uncredited)
IMC GuardBarry Stephens (uncredited)
IMC GuardJay Neill (uncredited)
IMC GuardLes Clark (uncredited)
ColonistEmmett Hennessy (uncredited)
ColonistWalter Turner (uncredited)
ColonistMike Stephens (uncredited)
Stunt ManTerry Walsh (uncredited)
Stunt ManDinny Powell (uncredited)
Stunt ManAlf Joint (uncredited)
Stunt ManMike Horsburgh (uncredited)