Game Of Thrones star Maisie Williams will guest star in Doctor Who when it returns to our screens this autumn. The BBC announced the news on their blog on Monday (30th March).

Maisie Williams
Maisie Williams will guest star in Doctor Who.

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"I'm so excited to be working on Doctor Who as it's such a big and important part of British Culture. I can't wait to meet the cast and crew and start filming, especially as we'll be shooting not too far from my home town," Williams said in a statement. 

Williams will be joining the current Doctor, portrayed by Peter Capaldi, and his latest assistant Clara, played by Jenna Coleman. We're not sure what part Williams will play when she guest stars in the hit series. However, writer and executive producer Steven Moffat promises her character will present a "challenge" to the Doctor.

"It's not possible to say too much about who or what she's playing, but she is going to challenge the Doctor in very unexpected ways," Moffat said. "This time he might just be out of his depth, and we know Maisie is going to give him exactly the right sort of hell."

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Other well known actors and singers who have guest starred on Doctor Who include Kylie Minogue, Nick Frost, John Cleese, Richard Biers, Anne Robinson, Olivia Coleman and Hugh Bonneville, to name just a few. One of Williams' Game of Thrones co-stars, Joe Dempsie who plays Gendry, also guest starred in an episode of Doctor Who in 2008. 

17-year-old Williams is best known for her role as Arya Stark on HBO's Game of Thrones. She starred in the Channel 4 drama Cyberbully earlier this year, a role for which she received positive reviews from critics. Williams also stars in the upcoming drama The Falling, written and directed by Carol Morley (Dreams of a Life). 

Watch The Movie Trailer For The Falling On Contactmusic: