Doctor on call for daleks, vikings
Villages of vikings and a city of Daleks await the Doctor in the new series of Doctor Who.
The cast of the long-running science fiction show lifted the lid on some of the Time Lord's new adventures at a special session at Comic-Con in the United States.
Peter Capaldi, who plays the Doctor, and his co-star Jenna Coleman unveiled a new trailer for the show.
Capaldi said: "Soaring through all of time and space, series nine sees the Doctor throw himself into life with a new hunger for adventure.
The trailer ended with the appearance of Game of Thrones star Maisie Williams, who plays Arya Stark in the blood-thirsty fantasy drama.
Other already confirmed guest stars include Rebecca Front, Rufus Hound and Paul Kaye.