Joffrey and his alleged hooker killing craziness would have to be Craig James. I'd say Sparty would be Theon Greyjoy.
"I am insane. I am childish. I once drank an entire bottle of wine while watching Michigan and God's favored child Denard Robinson lose in Ohio Stadium to an undefeated Ohio State team BANNED FROM BOWL COMPETITION FYI JUST WANTED TO MENTION THAT FOR NO REASON."