Helena Bonham Carter is set to replace Vanessa Kirby as Princess Margaret in the next series of The Crown.

As revealed in the Evening Standard Londoner’s Diary column, Bonham Carter is ‘all but confirmed’ to join Olivia Colman, who will take up the mantle of the Queen from Claire Foy in the hit Netflix drama.

Bonham Carter is known for her roles in films including A Room with A View, the Harry Potter franchise, Alice in Wonderland, Sweeney Todd and Les Misérables.

The actress is also said to have been ‘in contention’ with Colman to play Elizabeth II herself but has instead secured the role of her rebellious younger sister.

As yet, Colman is the only name to be officially confirmed but viewers can expect to see a completely new cast when the royal drama returns for its third run, which will likely be later this year.

Helena Bonham Carter's film career in pictures 12 show all Helena Bonham Carter's film career in pictures 1/12 Queen of Hearts Helena Bonham Carter in Disney's Alice Through The Looking Glass 2/12 The witch Helena Bonham Carter in Big Fish 3/12 Queen Elizabeth Helena Bonham Carter as Queen Elizabeth alongside Colin Firth as King George VI in The King's Speech Universal 4/12 Mrs. Lovett Helena Bonham Carter as Mrs. Lovett alongside Johnny Depp as Sweeney Todd Warner Bros 5/12 Bellatrix Lestrange Helena Bonham Carter as Bellatrix Lestrange in Harry Potter & The Deathly Hallows Part 1 6/12 Enid Blyton Helena Bonham Carter as Enid Blyton in Enid Nick Briggs 7/12 Miss Havisham Helena Bonham Carter as Miss Havisham in Great Expectations 8/12 Marla Singer Helena Bonham Carter as Marla Singer in Fight Club 9/12 Edith Ellyn Helena Bonham Carter as Edith Ellyn in Suffragette 10/12 Red Harrington Helena Bonham Carter as Red Harrington in Lone Ranger 11/12 Fairy Godmother Helena Bonham Carter as the Fairy Godmother in Cinderella 12/12 Ari Helena Bonham Carter as Ari alongside Mark Wahlberg as Captain Leo Davidson in Planet Of The Apes 1/12 Queen of Hearts Helena Bonham Carter in Disney's Alice Through The Looking Glass 2/12 The witch Helena Bonham Carter in Big Fish 3/12 Queen Elizabeth Helena Bonham Carter as Queen Elizabeth alongside Colin Firth as King George VI in The King's Speech Universal 4/12 Mrs. Lovett Helena Bonham Carter as Mrs. Lovett alongside Johnny Depp as Sweeney Todd Warner Bros 5/12 Bellatrix Lestrange Helena Bonham Carter as Bellatrix Lestrange in Harry Potter & The Deathly Hallows Part 1 6/12 Enid Blyton Helena Bonham Carter as Enid Blyton in Enid Nick Briggs 7/12 Miss Havisham Helena Bonham Carter as Miss Havisham in Great Expectations 8/12 Marla Singer Helena Bonham Carter as Marla Singer in Fight Club 9/12 Edith Ellyn Helena Bonham Carter as Edith Ellyn in Suffragette 10/12 Red Harrington Helena Bonham Carter as Red Harrington in Lone Ranger 11/12 Fairy Godmother Helena Bonham Carter as the Fairy Godmother in Cinderella 12/12 Ari Helena Bonham Carter as Ari alongside Mark Wahlberg as Captain Leo Davidson in Planet Of The Apes

This means that, as well as the Queen and Princess Margaret, the roles of Prince Philip, Prince Charles and the Queen Mother will be recast.

The Londoner’s Diary predicts that the part of Prince Philip who is currently portrayed by Matt Smith, will be picked up by David Tennant or Michael Sheen.

Prince Charles, who is still a child in series two, has already been played by two actors – Billy Jenkins and Julian Baring but will most likely be played by an adult in series three.