Emma Corrin as Princess Diana
https://www.news.com.au/entertainment/tv/the-crown-first-look-at-emma-corrin-as-princess-diana/news-story/69abb145fd399331d01e2838e75cb782
Be interesting to see if she pulls it off. There's a resemblance, I guess, but in that insta shot she looks more like Jodie Foster than Diana.