Actress Maisie Williams, who created the indelible character Ashildr in Doctor Who series 9, has stated that she will not return to the show. Talking to BANG Showbiz she said,
‘I’m not going to be working on ‘Doctor Who’ again. Everyone’s hyping about it, which is very exciting, but I guess that’s more of a publicity thing. But no, I’m not going to return, I have a lot of other really exciting projects lined up instead.”
Williams is already a star on Game of Thrones, where she memorably plays Arya Stark. Much like Missy, Arya uses the pointy end to do her damage. Her upcoming roles include parts in Arrivals, The Devil and the Deep Blue Sea, iBoy, The Forest of Hands and Teeth.
Series 10 of Doctor Who begins filming later this spring, and it will be the last series for showrunner Steven Moffat. Williams did speak highly of her experience filming Doctor Who saying,
‘I had such a wonderful time shooting that series, it was really great to work with Jenna and Peter. It was such a different experience to shoot working in blocks, because I work on ‘Game of Thrones’ and we do everything all at the same time so it’s a different way of working.”
Wiliams first appeared in the episode “The Girl Who Died” and played the role of Ashildr, the beloved daughter of a Viking from the ninth century. The Doctor sees her and is certain they are connected in some way – in fact, he says he knows he remembers her, even without having met her yet. Ashildr dies while battling the Mire. Clara tells to Doctor to let Ashildr go, but the Doctor brings her back, with destructive results. Ashildr then appears in three more episodes, “The Woman Who Lived,” “Hell Bent,” and “Face the Raven.”
But it still may be possible for Ashildr to return at some point in a future. The last we saw of her, she and Clara were in the TARDIS together, charting their own journey.