Jenna-Louise Coleman, who will return at Christmas, said: “Boo! Hello! Hope we gave you a good surprise! Thanks to all the fans who kept it quiet and made it so! More to come... watch this space!”
Steven Moffat thanked fans for not revealing the surprise before it was broadcast: “I hope you all got a nice surprise when Jenna popped up in Doctor Who several months early. If so, that surprise came to you courtesy of the frankly magnificent ladies and gentlemen of the press, and of the many Doctor Who forums and blogs too. This show has been seen at four separate screenings, across four different countries and yet not one person gave one spoiler. From all of us on Doctor Who, a heartfelt thank you for helping us tell our story.”
A new gallery of Jenna-Louise Coleman pictures is available on the official Doctor Who website.