The Celestial Toymaker, also known simply as the Toymaker or the Mandarin, is the main antagonist of the Doctor Who story "The Celestial Toymaker".
He was portrayed by the late Michael Gough, who voiced Osmund Saddler in Resident Evil 4, Gnasty Gnorc in Spyro the Dragon and Lord Hertford in the 1996 version of The Prince and the Pauper. For the Big Finish audios, he was voiced by the late David Bailie.
The Toymaker was already known to the first Doctor when he drew him and his companions Steven and Dodo into his realm. The Toymaker controlled a fantasy world to which he lured people to play his games. Those who lost became his toys, while defeat for the Toymaker would destroy his world, although the immortal Toymaker would be able to create a new one and always took those who defeated him with him. As he noted "I'm a bad loser, Doctor. I always destroy the destroyer." He challenged the Doctor to play the Trilogic Game, to be completed in exactly 1023 moves, while Steven and Dodo played a series of potentially deadly games against the Toymaker's playthings to recover the TARDIS. Both groups succeeded, but the Doctor knew making the last move of the Trilogic Game would destroy the Toymaker's world and them with it. He eventually got around the conundrum by setting the TARDIS to take off and then impersonating the Toymaker's voice to command the last piece to move, dematerialising as it did so.
The Toymaker was intended to return some twenty years to menace the Sixth Doctor and Peri in "The Nightmare Fair", but the story was never produced thanks to the show being suspended, although it was later adapted as a novel and audio play. Here, the Toymaker was using the amusement arcades of Blackpool to abduct youngsters, but was defeated when the Doctor imprisoned him in a forcefield powered by his own mind.
The Toymaker starred in the DWM comic strip "The Greatest Gamble" and in the short story "Games", where he played four-dimensional chess with Fenric. In the strip "Endgame", he competed with the Eighth Doctor and his friend Izzy and Max, being left battling a duplicate of himself.
The novel Divided Loyalties acted as a combined prequel and interquel, depicting the Doctor's first meeting with the Toymaker, alongside his Time Lord friends Rallon and Millenia. The Toymaker possessed Rallon's body and the Doctor was forced to flee without his two friends. The Toymaker later tried to replace Rallon's body with that of the Fifth Doctort but was foiled by Rallon triggering a regeneration. The ending leads into "The Nightmare Fair" with the Toymaker heading to Blackpool.
The Toymaker would encounter the Seventh Doctor, Ace and Hex in the audio play "The Magic Mousetrap". Here, he was apparently trapped in a doll but turned the tables and converted his opponents into dolls, with only a few of them managing to escape as the Toymaker was left alone in his world again.