Risus - the Anything RPG
The whole basis of the game is that characters are composed of Cliches that are rated 1-6, higher being better. So I might be:
Beer God (3)
Neo-Pagan Clergy (2)
Near-sighted - wears glasses
There are a few options (which is why the system is 6 pages). Now I'm chewing in my brain how to use this system. Even though it's designed as a beer-and-pretzels late-night pick-up game system, it's been put to use for full-blown campaigns.