The Three Doctors (Doctor Who) the Third Doctor (Jon Pertwee) for help when Omega drains their civilisation's power. The serial opened the tenth anniversary year of the series, and features the first three Doctors all appearing in the same serial. This makes it the first "Doctor Who" story in which an earlier incarnation of the Doctor returns to the show. A superluminal signal is sent to Earth, carrying with it an energy blob that seems intent on capturing the Doctor. The homeworld of the Time Lords is also under siege, their power being drained through a black hole. Trapped themselves, and desperate to send help,
The Doctor (Doctor Who) Time War, albeit much earlier than during "The End of Time". The mini-episode presented him as a conscientious objector to the war who regenerated under controlled circumstances into the War Doctor (John Hurt), a previously unseen incarnation created retroactively by Davies' successor as head writer, Steven Moffat, for the 50th anniversary special "The Day of the Doctor". The Tenth and Eleventh Doctors explained that Hurt's regeneration was not The Doctor because his actions during the Time War were a betrayal of the promise that name symbolized. "The Day of the Doctor" revisited the last day of the Time War after