The Hollywood Reporter report that Diana will be introduced in the show’s fourth season.
Season 3 is set to premiere in 2019, although an exact date has not been announced.
“Beyond excited and honored 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!”
“Emma is a brilliant talent who immediately captivated us when she came in for the part of Diana Spencer,” The Crown creator Peter Morgan told The Hollywood Reporter.
“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 of the six-series show began filming in July 2018, with announcements of the new cast making headlines over the past several months.
Last April, The Crown‘s Twitter confirmed that Olivia Colman of The Night Manager and Tobias Mezies of Outlander would play Queen Elizabeth and Prince Philip for seasons 3 and 4.
They are replacing Claire Foy and Matt Smith.
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