The War Games is the seventh and final serial of the sixth season of the British science fiction television series Doctor Who, which originally aired in ten weekly parts from 19 April to 21 June 1969.
The Evil of the Daleks is the mostly-missing ninth and final serial of the fourth season in the British science fiction television series Doctor Who, which originally aired in seven weekly parts from 20 May to 1 July 1967.
The Curse of Peladon is the second serial of the ninth season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 29 January to 19 February 1972.
The Two Doctors is the fourth serial of the 22nd season of the British science fiction television series Doctor Who, which was first broadcast in three weekly parts on BBC1 from 16 February to 2 March 1985.
Victoria Waterfield is a fictional character played by Deborah Watling in the long-running British science fiction television series Doctor Who. A native of Victorian England, she was a companion of the Second Doctor and a regular in the programme from 1967 to 1968. Only two complete serials to feature her exist complete in the BBC archives. However, DVDs of all her adventures have still seen release, with both official animation and photo reconstructions utilizing the original surviving audio taking the place of the missing episodes.
Zoe Heriot is a fictional character played by Wendy Padbury in the long-running British science fiction television series Doctor Who. A young astrophysicist who lived on a space wheel in the 21st century, she was a companion of the Second Doctor and a regular in the programme from 1968 to 1969. Zoe appeared in eight stories.
James Robert McCrimmon, usually simply called Jamie, is a fictional character played by Frazer Hines in the long-running British science fiction television series Doctor Who. A piper of the Clan MacLeod who lived in 18th-century Scotland, he was a companion of the Second Doctor and a regular in the programme from 1966 to 1969. The spelling of his surname varies from one script to another; it is alternately rendered as Macrimmon and McCrimmond. Jamie appeared in 20 stories.
The Dominators is the first serial of the sixth season of the British science fiction television series Doctor Who, which originally aired in five weekly parts from 10 August to 7 September 1968. The Second Doctor and his travelling companions Jamie McCrimmon and Zoe Heriot work with the Dulcians of the planet Dulkis to prevent the alien Dominators from blowing up Dulkis and using its irradiated remains as spaceship fuel.
The Ice Warriors are a fictional extraterrestrial race of reptilian humanoids in the long-running British science fiction television series Doctor Who. They were originally created by Brian Hayles, first appearing in the 1967 serial The Ice Warriors where they encountered the Second Doctor and his companions Jamie and Victoria. In Doctor Who, the Ice Warriors originated on Mars, which within the series narrative is a dying world. Their early appearances depict the Ice Warriors as attempting to conquer the Earth and escape their planet as early as Earth's Ice Age. A frozen group are discovered by an Earth scientific team, one of whom, Walters, dubs them 'Ice Warriors' in their first appearance. Despite this not being the name of their species, an Ice Lord later refers to his soldiers as Ice Warriors in the 1974 serial The Monster of Peladon. Similarly there is a fleeting reference to themselves as such in The Curse of Peladon. Although originally appearing as villains, subsequent appearances have depicted Ice Warriors that have eschewed violence and even ally themselves with the Doctor. They have also been featured in flashback and cameo appearances, in addition to appearing frequently in spin-off media such as novels and audio releases.
The Mind Robber is the second serial of the sixth season of the British science fiction television series Doctor Who, which was first broadcast in five weekly parts from 14 September to 12 October 1968.
The Power of the Daleks is the completely missing third serial of the fourth season of British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 5 November to 10 December 1966. It is the first full story to feature Patrick Troughton as the Second Doctor.
The Moonbase is the half-missing sixth serial of the fourth season in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 11 February to 4 March 1967.
The Second Doctor is an incarnation of the Doctor, the protagonist of the British science fiction television series Doctor Who. He was portrayed by actor Patrick Troughton. Out of his 119 episodes, 53 are missing.
The Invasion is the partly missing third serial of the sixth season of the British science fiction television series Doctor Who, which was first broadcast in eight weekly parts from 2 November to 21 December 1968.
The Ice Warriors is the partly missing third serial of the fifth season of the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 11 November to 16 December 1967.
The Wheel in Space is the partly missing seventh and final serial of the fifth season in the British science fiction television series Doctor Who, which originally aired in six weekly parts from 27 April to 1 June 1968.
The Highlanders is the completely missing fourth serial of the fourth season in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 17 December 1966 to 7 January 1967.
The sixth season of British science fiction television series Doctor Who began on 10 August 1968 with the first story of season 6 The Dominators and ended Patrick Troughton's reign as the Doctor with its final story The War Games. Only 37 out of 44 episodes are held in the BBC archives; 7 remain missing. As a result, 2 serials are incomplete: only episode 2 of the 6-part story The Space Pirates still exists, while The Invasion has had its two missing episodes reconstructed using animation.
The fifth season of British science fiction television series Doctor Who began on 2 September 1967 with the first story of season 5 The Tomb of the Cybermen and ended on 1 June 1968 with The Wheel in Space. Only 22 out of 40 episodes are held in the BBC archives; 18 remain missing. As a result, only 2 serials exist entirely. However, The Abominable Snowmen, The Ice Warriors, The Web of Fear, and Fury from the Deep have had their missing episodes reconstructed using animation.
The fourth season of British science fiction television series Doctor Who began on 10 September 1966 with the First Doctor story The Smugglers and, after a change of lead actor part-way through the series, ended on 1 July 1967 with The Evil of the Daleks. For the first time, the entire main cast changed over the course of a single season.
