The Celestial Tom Baker appeared in the episode of the same name. He is ronery (literally) and turns people into toys.
In the episode, an actor totally drops the n-bomb, and someone decided it was a good idea to leave that in and broadcast it. Tellingly, "celestial" is old timey >implication talk for "asian".
Some other undignified stuff happens in the episode, too.
It's racist, boring and generally shit but part 4 is one of the most unintentionally hilarious pieces of television ever broadcast. Part 4's also the only episode we have a full copy of so you might as well just watch that and look up the other three on
TARDIS Data Core Wikipedia.
You know what? Don't let these scrubs who don't know the meaning of the phrase "Doctor Who for 4channers" get you down. It's not the best story, but it's not the worst First Doctor story either (that unsavory award goes to The Sensorites or The Smugglers). Aside from the lolz attained from the King dropping the "n-bomb", which is probably why this serial won't get an animated adaptation, it has a tense battle of wits between the Doctor and the Toymaker, whom is an interesting concept in spite of his excessive cheat-trolling, and this story was also one of the only serials that made Dodo...you know...interesting...
But another way to interpret this is that if Dodo is the highlight of a story, then said story has many problems...