Supreme One (Deadline)

The Supreme One was a being in Martin Bannister's delusional fantasy of being "Doctor Who" in a parallel universe.

Biography
Martin Bannister imagined himself, as Doctor Who, and his companions, Susan, Ian, and Barbara, captured by the Supreme One's guards on an alien world. According to the Supreme One, while it did wish to enslave all life in the universe, this was not actually how it got its name, which was "just a happy co-incidence". When Doctor Who asked it if it was "totally evil", its voiced morphed into that of Sydney Newman, and began mocking him for poor characterisation, and telling him that he was never a good writer, even before he began work in "genre" fiction, and his work was all "theme, theme, theme", declaring "what rot!". Its voice then further morphed into that of Sydney, and requested an interview with him for the official Juliet Bravo magazine, after which it would take over the universe. It then commonded its guards to take Doctor Who, Susan, Ian, and Barbara to the dungeons. As the travellers were dragged off, Doctor Who admitted that he was unsure what to do. (AUDIO: Deadline)

Behind the scenes
The Supreme One is based upon the Perfect One from the unproduced television serial The Masters of Luxor.