If you were a fan of the Doctor Who series 8 two-part finale, Dark Water & Death In Heaven, then you'll be pleased to know that the director Rachel Talalay will be returning to helm episodes 11 and 12 of the new season.
Outside of Doctor Who, Talalay has previously been responsible for episodes of Supernatural, Continuum and Haven, amongst many others, as well as the movies Tank Girl and The Borrowers.
The as yet untitled series 9 finale will be written by Steven Moffat, who teased a major cliffhanger for the first part:
"I’ve figured out the cliffhanger to the penultimate episode of [series 9]. And it’s a whopper. Ohh, I don’t think you’ll see this coming!"Here's everything we know so far about Doctor Who series 9.