9. The Identity Of Maisie Williams' Character Has Already Sent The Fandom Into Overdrive
There's nothing Doctor Who loves more than a good old fashioned conundrum and if an enigmatic character isn't popping up unexplainably at various points throughout the Doctor's timeline (*cough* River Song *cough*), they're probably... erm, popping up unexplainably at various points throughout the Doctor's timeline. Classic Clara. It looks like Series 9 will get tongues wagging - so to speak - with a riddle wrapped in an enigma of the likes we've never seen before, though, as Game of Thrones star Maisie Williams will be guest starring as a mysterious character who will challenge the Doctor in unexpected ways. Whatever that means.