《曾有两次:《神秘博士》2017圣诞特别篇》是2017 年上映的一部剧情 科幻 悬疑 冒险 科幻片 类型的影视作品,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.