It would have to be my friend Brian.
Fscking genius that guy is, got into med school at Davis, but I'm positive that had he not flaked off so much in classes he'd easily have made it into any med school in the country.
He's adept at theater, construction, audio, electronics, fencing (swords), guns, music (guitar, piano, vocals, turntablism), among other things. He's also a bigtime pharmaceuticals dealer. His family is very wealthy, but he makes a lot of his own as well. He'll go out on the biggest impulse buying sprees I've seen. One day it'll be a TV. The next, turntables. One week he bought four pairs of $150+ headphones plus a custom amp.
Add to this he's one eccentric motherfscker. He'll wear sunglasses all the time, including while driving at 2AM. He drives at least 30mph over the speed limit at any given time, and I can count how many near-death experiences I've had in his car, which until recently was a Turbo New Beetle. He can have limitless tact and propriety in public when necessary, but more often than not it feels like I'm out in public with a six year old with ADD. He'll mess with store demos, say really odd things very loudly, and generally act, well, crazy.
All in all he's a good friend and fun to be around. A good change of pace from normality I guess.