Casting announced for Princess Diana and Prince Philip in the final two series of The Crown
Debicki will take over the role from Emma Corrin, who will star as Princess Diana in the upcoming fourth series due later this autumn.
Jonathan Pryce (Game of Thrones) has also been announced to take over from Tobias Menzies as Prince Philip.
Pryce and Debicki will join the cast confirmed for series five and six including Imelda Staunton (A Confession), who will play Queen Elizabeth, and Lesley Manville (Mum) as Princess Margaret.