#35 The 13th Doctor
There was a small yet highly vocal group of Who fans who objected to the Thirteenth Doctor being a woman, despite the fact that the concept of Time Lords not being limited to a certain gender had been established previously. A lot of people felt a woman shouldn’t play the Doctor, and Jodie Whittaker had to fight against that sentiment.
The Thirteenth Doctor’s first few appearances were tainted by the vocal few who cried out, despite the fact that the vast majority of fans were excited to see the Doctor portrayed as a woman for the first time.