Newcomer Emma Corrin has in 's season 4, Netflix has officially announced. The streaming service confirmed the news on Twitter, and added that filming for the latest series will begin this year.
Corrin revealed that she was 'beyond excited and honoured' to be joining the award-winning series, while the show's creator Peter Morgan added that she had 'immediately captivated' producers. The actress previously featured in an episode of Netflix series Grantchester.
'Beyond excited and honoured to be joining The Crown for its fourth season,' Corrin said in a statement. 'I have been glued to the show since the first episode and to think I’m now joining this incredibly talented acting family is just surreal.
'Princess Diana was an icon, and her effect on the world remains profound and inspiring. To be given the chance to explore her through Peter Morgan's writing is the most exceptional opportunity, and I will strive to do her justice!'
Morgan added: 'Emma is a brilliant talent who immediately captivated us when she came in for the part of Diana Spencer.
'As well as having the innocence and beauty of a young Diana, she also has, in abundance, the range and complexity to portray an extraordinary woman who went from anonymous teenager to becoming the most iconic woman of her generation.'
The third season will launch later this year. Oscar winner Olivia Colman will make her debut as the Queen after taking over from Claire Foy, while Tobias Menzies takes over from Matt Smith as Prince Philip. Helena Bonham Carter replaces Vanessa Kirby as Princess Margaret.
Meanwhile, Corrin will appear next as Esme in the upcoming 10-part Warner Brothers/EPIX series Pennyworth. Set in 1960s Manchester Pennyworth chronicles former SAS Soldier Alfred Pennyworth – better known as the butler to Bruce Wayne in the Batmen series. She will also make her big screen debut later this year in Misbehaviour, a film about a group of women who hatch a plan to disrupt the 1970 Miss World beauty competition, starring Keira Knightley and Keeley Hawes.