Character: The Mister Master! Canon:DoctorMaster Who
Interesting things about the character:
He's a Time Lord, so he's basically a very old alien who can also regenerate, or transform every cell in his body upon 'death' to create a fresh new body for himself.
He's a villain, but he used to be best friends with the Doctor. In fact, the Doctor's been known to call him 'my best enemy'. And it can be argued the Master's favorite pastime is basically going around the universe trolling the Doctor. You know, by threatening his loved ones and taking over Earth and such. Because that's what you do when you're obsessed with your space boyfriend.
He likes aliases. His most recent one was Harold Saxon, but usually they incorporate the word 'Master', in one language or another.
He hatches crazy, complicated plots. Once he was elected to Prime Minister. He then proceeded to take over the Earth with flying death balls. Another time he gave everyone on Earth his genetic code so that there could be six billion Masters to laugh madly at the Doctor.
He also once killed someone with a plastic chair.
He has a tendency to act flippantly, especially in front of humans. But he's pretty manic anyway, mostly to keep up with the Doctor's quirkiness. He likes awful pop music or even glam rock like the Scissor Sisters and enjoys children's television.
In New Who he acquired an auditory hallucination: a drum beat that plays constantly in his head. He thinks it's a call to War. It isn't, but I don't want to spoil the surprise because it's just too depressing.
He has a laser screwdriver, which is so much better than the Doctor's ratty old sonic.
He had a wife! Which is interesting in itself because he rarely takes on companions. Also, she was a collaborateur, totally on board with his going round killing Earthlings and taking over the planet.
Interesting things about the canon/fandom:
It's a super long-running show, mainly because the Time Lord regeneration aspect meant they could keep replacing actors to play the Doctor. Also, the show just rocks and it's embedded in British culture.
Did you know it's actually supposed to be a kid's show? Though Moffat seems determined to change that...
I mean really, if you take out the alien time traveler stuff it's about an incredibly old man who picks up young people, usually girls, and stuffs them into a police box to go on 'adventures'.
In some ways the show is total wish fulfillment. This guy can go wherever he wants and whenever he wants and never has to worry about food, lodging, or money. For most of us it's a dream come true, even given the monsters.
And oh, are there some incredible monsters. The classic episodes (anything before the 2005 reboot) especially feature some really cheesy low budget costumes and effects.
Like Stacy, the Doctor's TARDIS is a sentient being. It's also bigger on the inside, which means you get the potential for some fabulous interiors like this:
and this:
and this:
Companions have included a warrior woman, a penguin, a shapeshifting android, a tin dog, a teenager who's also sort of an ekrixiphile, and a pansexual, ultra-charismatic space captain (who got his own series now. It's called Torchwood).
Master Who
Canon:
DoctorMaster WhoInteresting things about the character:
Interesting things about the canon/fandom:
and this:
and this:
Anything else?: The fans are crazy.