曾有两次：《神秘博士》2017圣诞特别篇

• 主演：彼得·卡帕尔迪  大卫·布拉德利  马克·加蒂斯  珀尔·麦基  莉莉·崔佛斯  杰瑞德·加菲尔德  朱迪·惠特克  托比·怀特豪斯  
• 导演：瑞秋·塔拉蕾  
• 分类： 科幻
• 地区：英国 
• 年份：2017 
• 更新：2024-03-16 18:39:50
• 简介：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.