Jonny Lee Miller cast as Prime Minister John Major in The Crown Season 5

He joins Lesley Manville as Princess Margaret, Jonathan Pryce as Prince Philip, and Elizabeth Debicki as Princess Diana

source https://www.cinemaexpress.com/stories/news/2021/jun/28/jonny-lee-miller-cast-as-prime-minister-john-major-in-the-crown-season-5-25197.html