The Crown’s history consultant Robert Lacey told Town&Country, "We're now writing season three, and without giving anything away—it's on the record, it's history—we'll see the breakup of this extraordinary marriage between Margaret and Snowdon. This season, you see how it starts, and what a strange character, a brilliant character Snowden was."
Olivia Coleman will take over from Claire Foy to play Queen Elizabeth II for seasons 3 and 4, Netflix has confirmed. Helena Bonham Carter is pretty much confirmed to replace Vanessa Kirby as Princess Margaret, which the actress all but confirmed when she posted a picture of the two together on Instagram with the caption, "Honoured @thecrownnetflix".
While we're waiting for new episodes of The Crown check-out our list of everything we know about season three: New Cast, Release Date And Princess Diana To Debut