The 2016 Doctor Who Diary covers the entire 12 episodes of Series 8, the first series to star Peter Capaldi as The Doctor in his 12th incarnation. Clara Oswald, played by Jenna Coleman, remains as The Doctor's loyal companion. The action over the series revolves around the mysterious character of Missy, played by Michelle Gomez, whose true identity is eventually revealed as the Master, The Doctor's arch enemy. Also includes the Christmas special!