Doctor Who/Castrovalva

Castrovalva
Season 19, Serial 1
Airdate	January 4, 1982
Production Number	5Z
by	Christopher H. Bidmead
Directed by	Fiona Cumming
← 18x07 Logopolis	19x02 → Four to Doomsday
Doctor Who — Season Nineteen

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Castrovalva is the first serial of the nineteenth season of Doctor Who, and the one-hundred and seventeenth serial overall.

Part One: Peter Davison (The Doctor), Janet Fielding (Tegan), Sarah Sutton (Nyssa), Matthew Waterhouse (Adric), Anthony Ainley (The Master), Dallas Cavell (Head Of Security)

Part Two: Peter Davison (The Doctor), Janet Fielding (Tegan), Sarah Sutton (Nyssa), Matthew Waterhouse (Adric), Anthony Ainley (The Master), Frank Wylie (Ruther)

Part Three: Peter Davison (The Doctor), Janet Fielding (Tegan), Sarah Sutton (Nyssa), Matthew Waterhouse (Adric), Anthony Ainley (The Master), Derek Waring (Shardovan), Michael Sheard (Mergrave), Frank Wylie (Ruther), Neil Toynay (Portreeve), Souska John (Child)

Part Four: Peter Davison (The Doctor), Janet Fielding (Tegan), Sarah Sutton (Nyssa), Matthew Waterhouse (Adric), Anthony Ainley (The Master), Derek Waring (Shardovan), Michael Sheard (Mergrave), Frank Wylie (Ruther)

Uncredited: Tom Baker (Doctor Who) (archive footage)

Arc Advancement

Referbacks

• While still disorientated, the Doctor addresses Adric as "Brigadier" and "Jamie", and Tegan as "Vicki" and "Jo". He mentions his past foes the Ice Warriors as well as K9, as if they were present and as well as visiting Alzarius (Full Circle) and Logopolis (Logopolis). He also channels his past incarnations when he urges Tegan and Nyssa not to "reverse the polarity of the neutron flow" (a la The Third Doctor and toys with a recorder (a signature item of The Second Doctor). In addition to briefly adopting the persona of the Second Doctor, he also adopts the persona of The First Doctor when wandering through the TARDIS, grasping his lapels, referring to Adric as "boy", and the characteristic laugh. He also mentions that Romana keeps telling him "to take a holiday," as she did during his fourth incarnation.

Trivia

The Show

• First time in the series the Doctor is credited as such instead of "Dr. Who" or "Doctor Who".

• While the Portreeve is listed in the credits as being played by Neil Toynay, it is actually Tony Ainley as "Neil Toynay" is an anagram of his name. This was done to hide that the Portreeve is the Master while also playing on how the Master's would use either anagrams or synonyms for "Master" as aliases.

Behind the Scenes

• Footage from the final moments of Logopolis were not only reedited, but also re-scored with more upbeat music to signify the "birth" of the Fifth Doctor.

• M.C. Escher received a dedication in the novelisation due to the influence on the story's visual design.

• Patrick Troughton visited the set and stood in during camera rehearsals while Davison was off filming for the series Sink or Swim.

• When filming the scene where the Doctor eats a piece of celery, Davison immediately spat it out on the first take, due to actually having an intense dislike of the vegetable.