Maisie Williams, famed for her part in HBO’s Game of Thrones is set to guest star in the ninth series of Doctor Who alongside Peter Capaldi and Jenna Coleman. The actress, who plays Arya Stark in the hit TV show is set to “challenge the Doctor” according to showrunner Steven Moffat. Maisie has said that “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.”