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 Master (Doctor Who) Anthony Ainley's incarnation of the Master in his short story, "Birth of a Renegade", in the "Doctor Who 20th Anniversary Special" one-off magazine, published by "Radio Times" (and in the United States by Starlog Press) in 1983. In a short story by Cavan Scott and Mark Wright, "The Feast of the Stone", an android version of the Master is created by the Doctor as an ally—albeit a slightly sinister one. Exactly why the Doctor created an android duplicate of the Master is not revealed, but it is suggested that the Doctor somehow extended the Master's life by doing so. The