Season 52 (Doctor Who)

Season 52 of Doctor Who premiered in Spring 2018. The season was the fourth of Chapter Four. It featured Adjoa Andoh as The Doctor, Daniel Adegboyega as Pete Fletcher, Shelley King as Sally Brennen, and Jane Wymark as Annie Downes.

This is the last season to have Ronald D. Moore as showrunner.

This is the first season since Season 50 to be split into two parts with part one airing in Spring 2018 and part two airing in Autumn 2018.

Production Team
While the original plans were to have Ronald D. Moore continue as showrunner, partway through the filming of the third block of the season, on 19 December 2017, Moore was fired by the BBC and CBS due to the ratings and failures of the previous season, the success of the spin-off series The Elysium, and them not liking the scripts for the second half of the season.

Due to this, Jane Espenson was brought on as Acting Showrunner to craft the rest of the season, starting with Episode 5 as before Moore was fired, only the festive special and four episodes were filmed. Because of this, Moore was only credited in the specials and episodes one to four as an Executive Producer, Gaynor Holmes remained on as an Executive Producer for BBC Scotland bar from episodes five, six, and seven, as she had to step in as a Producer and produce those episodes.

Originally the Co-Executive Producers of the season would have consisted of Season 51's Co-Execs Matthew B. Roberts, Kevin Murphy, and Sarah Dollard alongside Season 49 and 50's Co-Executive Producers and writing partners David Weddle and Bradley Thompson with Pete McTighe who wrote The Conspiracy of PriceMart in Season 51 rounding the team off.

After Espenson came onboard as acting showrunner, she fired Roberts, Murphy, Weddle, and Thompson but kept McTighe and Dollard on board while also bringing in Toby Whithouse, who like Weddle and Thompson, was a Co-Executive Producer on Seasons 49 and 50, and The Elysium Co-Executive Producer, Adrian Hodges.

Cosmetic Changes
With Espenson in charge, a new title sequence was made which had taken elements from the one used in Season 49 and 50 while also using around the same style of the Season 51 sequence. Though it wasn't even commissioned by the Christmas Special’s airing, which use the 51 ones, it was ready for the beginning of the season. Starting in episode five, the Fifteenth Doctor gets a new costume, in which it now has a brown pinstriped suit in place of the leather jacket she previously had, which was deemed to be too "gritty" and "dark" by higher ups.

Format
Before Moore was fired, Season 52 was going to air on Sunday nights beginning in March 2018 in one continuous weekly run like the previous season did. The decision was taken to move the programme to Sundays following the ratings of Season 51, and the success The Elysium had there. But due to Moore being fired, the season was split into two halves with part one airing in Spring 2018 and the second half airing in the Autumn of 2018; with a total format of 14x60 minute episodes including the specials.

Pete, Sally, and Annie
Originally Pete Fletcher was set to return as the only companion to feature in Season 52. This was changed when Espenson came on as she decided to bring back Sally Brennen who was a companion in Season 51 and in addition, Sally's wife Annie Downes, who was a recurring character in the previous season.

The Original Season 52
Under Ronald D. Moore's leadership, Season 52 was originally very different, and after the first four episodes had been shot, the BBC were made aware of the plans for the rest of the season, and decided to pull the plug. In the original version, the Doctor would've, over the second half of the season, teamed up with the Master, the Rogue and the Rani, turned evil, and tried to stop Time Lord DNA from being affected by ascension, therefore stopping the events of several seasons of Panopticon. At the last minute, the Doctor would've realised she was being evil and would've put an end to it. The season was originally planned to air from 4 March 2018, but was pushed back by two weeks in order to give the production team extra time to complete episodes five and six before broadcast.

Regular
and
 * The Doctor - Adjoa Andoh
 * Pete Fletcher - Daniel Adegboyega
 * Sally Brennen - Shelley King
 * Annie Downes - Jane Wymark
 * Daniel Bevin - Pierce Brosnan

Recurring

 * The Master - Jason Issacs
 * The Rogue - David Thewlis
 * Caitrin Ryan - Gillian Anderson
 * Val Fletcher - Jenna Russell
 * Jade Brennen-Downes - Jasmine Uson
 * Sergeant Wilson - Bradley Gardner

Guest

 * Victor Pryme - Shaun Williamson
 * Chief Ice Warrior - Richard Ashton
 * Chief Alenxor - Spencer Wilding
 * Chief Kentor - Paul Kasey
 * Mary - Rosie Jane
 * Christine - Victoria Thomas
 * Paul - Tom Keller
 * Cassius - Victor Richards
 * Bryan Oldaley - Brian Dietzen
 * Major Barnett - Teddy Lane Jr.
 * Marshal Harrington - Brett Davern
 * Private Parkinson - Joe Adler
 * Voice of the Raston Warriors - Nicholas Briggs
 * Judy Maddox - Julie Hesmondhalgh
 * Dan Cooper - Lee Mack
 * Jarva Slade - Callum Dixon
 * Kira Arlo - Claudia Jessie
 * Charlie Duffy - Leo Flanagan
 * Voice of Kerb!am - Matthew Gravelle
 * Halliwell - Edward Speleers
 * Governor - Grant Stott
 * Jane - Ainsley Jordan
 * Adawehi - Tantoo Cardinal
 * Tawodi - Will Strongheat
 * Sara - Natalie Simpson
 * David - Jerome Holder
 * Buruzial - Phil Davis
 * Sanomi - Struan Rodger
 * Bernei - Alex Norton
 * Jwenzell - Robin Laing
 * Brya - Paul Kasey
 * Vem - Richard Price
 * Gourdn - Paul Bailey
 * Laxruax - Dan Starkey
 * Bill - Asif Khan
 * Train Driver - Hazel Altherton
 * Conductor - Daniel Joseph Woolf
 * Captain Barnes - Alec Utgoff
 * Dr. Jeffries - Andrew Byron
 * Thomas - Ben Price
 * Donna - Lucy Fallon
 * Lucy - Stirling Gallacher
 * Edward - Jack P. Shepherd
 * Voice of the Daleks - Nicholas Briggs
 * King Richard III - Michael Troughton
 * Buckingham - Adrian Dunbar
 * Clarence - Bart Suavek
 * Anne - Phoebe Fox
 * Duchess of York - June Brown
 * Margaret - Dandeep Dhillon
 * Deirdre - Catherine Tyldesley
 * Barney - Sean Ward
 * Voice of the Silicons - Nicholas Briggs
 * Ricky Brennen-Downes - Hiten Patel
 * Captain Pieters - Steve Halliwell

Crew
To be added.

Filming
To be added.

Aliens and Enemies

 * The Master
 * The Ice Warriors
 * The Raston Robots
 * Charlie Duffy
 * The British Empire
 * Halliwell
 * The Tolians
 * Buruzial
 * The Sontarans
 * The Weeping Angels
 * The Daleks
 * The Rogue
 * King Richard III
 * The Silicons

Physical Media
To be added.