Doctor Who (season 4)
The fourth season of British science fiction television series Doctor Who began on 10 September 1966 with the First Doctor (William Hartnell) story The Smugglers and, after a change of lead actor (Patrick Troughton) 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 (the only other occasion this has happened is during Season 21). Only 10 out of 43 episodes survive in the BBC archives; 33 remain missing. No serials in this season exist in their entirety. However, The Tenth Planet, The Power of the Daleks, The Underwater Menace, The Moonbase, The Macra Terror, The Faceless Ones and The Evil of the Daleks have currently had their missing episodes (twenty five in total) reconstructed with animation and subsequently have been released on home media. Casting

Main cast 
 William Hartnell as the First Doctor
 Anneke Wills as Polly
 Michael Craze as Ben Jackson
 Patrick Troughton as the Second Doctor
 Frazer Hines as Jamie McCrimmon
 Deborah Watling as Victoria Waterfield

William Hartnell appears as the First Doctor for the first two full serials before being succeeded in the role by Patrick Troughton as the Second Doctor for the remaining seven stories. Anneke Wills and Michael Craze continue their roles as Polly and Ben respectively. They are shortly joined by Frazer Hines playing Jamie McCrimmon in The Highlanders. Polly and Ben depart in the penultimate story The Faceless Ones, and at the end of the season Deborah Watling makes her debut as Victoria Waterfield in The Evil of the Daleks. Serials 

Season 4 was produced by Innes Lloyd. Gerry Davis served as Script Editor, apart from the final four episodes of The Evil of the Daleks. Peter Bryant joined as associate producer for The Faceless Ones, and replaced Gerry Davis as script editor for the last four episodes of the season. The Smugglers was the final serial to be produced during the third production block, but was held over to the start of Season 4. The Tenth Planet introduced the Cybermen and the concept of Regeneration, which wouldn't be named so until Planet of the Spiders in 1974. The Power of the Daleks was the first Dalek story to use the traditional ...of the Daleks title form. Of the nine subsequent Dalek serials, only Death to the Daleks from Season 11 was not named in this way. The naming convention for Dalek stories was first used in the revived series with "Evolution of the Daleks" in Series 3. While each of the other seasons produced in black and white have at least two serials completely intact (all serials from the transition to colour onwards have surviving copies in the BBC archive), none of the nine serials from Season 4 are complete in the BBC archive, with four (The Smugglers, The Power of the Daleks, The Highlanders and The Macra Terror) each having all of their episodes missing; of the total of 43 episodes between "Episode 1" of The Smugglers and "Episode 7" of The Evil of the Daleks, only 10 are currently in the BBC archive. The most complete serial of the season, The Tenth Planet, is missing only its last episode; this serial, as well as The Power of the Daleks, The Moonbase, The Macra Terror, The Faceless Ones and The Evil of the Daleks have had their missing elements recreated with animated episodes using the original soundtrack. Animations for Season 5 serials The Web of Fear and Fury from the Deep have also been released. The fully animated serials are presented in both colour and black and white formats, while The Tenth Planet and The Moonbase animations are presented exclusively in black and white. : Episode is missing

Production

During this season the title card for the series was changed for the first time, starting with The Macra Terror. Missing episodes

Season 4 is notable for being the only season of Doctor Who from which not a single complete serial survives. The missing episodes are:

The Smugglers – All 4 episodes
The Tenth Planet – Episode 4 (of 4 total) (Animated recreation exists)
The Power of the Daleks – All 6 episodes (Animated recreations exist)
The Highlanders – All 4 episodes
The Underwater Menace – Episodes 1 & 4 (of 4 total) (Animated recreations to be released 13th November 2023)
The Moonbase – Episodes 1 & 3 (of 4 total) (Animated recreations exist)
The Macra Terror – All 4 episodes (Animated recreations exist)
The Faceless Ones – Episodes 2, 4, 5 & 6 (of 6 total) (Animated recreations exist)
The Evil of the Daleks – Episodes 1, 3 to 7 (of 7 total) (Animated recreations exist)

Home media

VHS releases

DVD and Blu-ray releases

In print

See also 
 List of Doctor Who episodes (1963–1989)

References

Bibliography 

 
 
 

1966 British television seasons
1967 British television seasons
Season 04
Season 04
4
4
Black-and-white British television shows