Bill Potts (Played by Pearl Mackie) is a fictional character on the British television franchise ‘Doctor Who’. She was first shown as the new companion during a football game in 2016. Her first full episode was in Series 10 Episode 1: The Pilot. The Character was last seen in the 2017 Christmas Special ‘Twice Upon a Time’ featuring alongside Peter Capaldi, David Bradley and Mark Gatiss with cameos from Jenna Coleman as Clara Oswald and Matt Lucas as Nardole. Some fans refer to ‘The Doctor Falls’ as the Character’s last episode due to some wibbily wobbly timey wimey stuff.