Season Thirteen of the British science fiction television series Doctor Who began airing as a global simulcast in 2021. Regular episodes of the show aired on BBC One in the United Kingdom and BBC America in the United States. This season saw the return of Jodie Whittaker as the Thirteenth Doctor, along with Mandip Gill as Yasmin Khan, marking their third seasons on the show for each of them. Joining the cast this season is John Bishop as Dan, to replace departing season twelve actors Bradley Walsh and Tosin Cole. Season 13 comprises a singular story which carries the subtitle of "Flux".
On January 4th, 2021, it was reported that season thirteen could be the final season with Jodie Whittaker as the Thirteenth Doctor, giving her a three-season run on the show. While rumors of Whittaker's departure have circulated on set, the BBC has declined commenting on any speculation at this time. This news broke three days after BBC America premiered their New Year's special, "Revolution of the Daleks", which bridges seasons twelve and thirteen of the show. [1]