Doctor.who.2005.s00e161.the.power.of.the.doctor... 💯

: Reflecting her playful and optimistic nature, Whittaker’s final line is a simple: "Right then, Doctor whoever-I'm-about-to-be... tag, you're it" .

: The episode concludes with a "companion support group" featuring surprise appearances from Ian Chesterton (William Russell), Mel Bush (Bonnie Langford), and Jo Grant (Katy Manning). The End of an Era Doctor.Who.2005.S00E161.The.Power.of.the.Doctor...

: Disguised as Rasputin in 1916 Russia , the Master seeks to erase the Doctor from history by forcing her to regenerate into himself. Doctor whoever-I'm-about-to-be... tag