Peter Capaldi’s final episode of Doctor Who this Christmas will feature Pearl Mackie as Bill Potts and be called Twice Upon a Time, it was revealed this evening (23 July) during a cast panel at San Diego Comic Con. Viewers will have to wait until Christmas to discover exactly how Bill, who will appear throughout the episode, makes her return. 《曾有两次：《神秘博士》2017圣诞特别篇》的观看地址： http://www.ok1080.com/Pianku/105995.html由西瓜电影网提供,欢迎转发分享！