Gillian Anderson will play Margaret Thatcher in the fourth season with Emerald Fennell portraying Camilla Parker Bowles.
The third season of The Crown will premiere on Netflix starting November 17.
Based on the award-winning play, “The Audience,” the series reunites creator/writer Peter Morgan (The Queen, Frost/Nixon) with director Stephen Daldry (Billy Elliot, The Hours) and producer Andy Harries (The Queen).
The series tells the inside story of Queen Elizabeth II’s reign, as the fragile social order established after the Second World War breaks apart.