The future Queen Mother, Marion Bailey (“Allied”) commented on joining the Netflix show: “Wonderful to be joining The Crown. It’s a brilliant show and we have a tough act to follow but what a gift to be playing the fascinating and greatly loved Queen Mother. Thrilled to be on board and working with such a top notch team.”

Princess Anne also cast

Another new name joining the show for season three, due to screen in 2019, is Erin Doherty, who will play Elizabeth II and Prince Philip’s daughter, Princess Anne. The actress said: “To be part of ‘The Crown’ feels both ridiculously special and surreal. There is such a rare dynamic within Princess Anne that I am incredibly grateful to be able to explore. She is a woman of great strength and heart — I feel privileged to fight her corner.”