Doctor Who: Introduction to Twice Upon A Time

The BBC has released two videos introducing this year’s Doctor Who Christmas special, Twice Upon a Time.

The first of these features companion Pearl Mackie, guest star Mark Gatiss, and showrunner Steven Moffat hinting at what lies in store for viewers in tomorrow’s festive special:

Moffat also features in a separate video teasing the appearance of no fewer than three Doctors in Capaldi’s final episode:

Also released by the BBC is a video providing a brief guide to the First Doctor’s era ahead of the character’s latest reappearance in the show…

…as well as a timelapse video showing the construction of not just one, but two TARDISes on location.

Twice Upon a Time airs on Christmas Day at 5:30pm on BBC One.