Let's play a game /tg/
Pick four characters. They are now stuck playing generic fantasy setting together.
Who DMs? Who plays what?
I'll start.
Hal 9000, IM, GLaDOS, SHODAN.
IM's obviously GMing an extremely high lethality campaign as a "That GM" who thinks the goal of the game is killing the party (or more accurately torturing them for all eternity)
Hal plays a Lawful Stupid Paladin and attempts to rigidly adhere to all the "directives" of his chosen god, often getting stuck in logic loops because of it.
GLaDOS doesn't want to be there, but rolls a minmaxed munchkin set like Pun Pun just to spite the GM and metagames like hell.
SHODAN rolls a maniacal planeshifting wizard with a god-slaying fetish.