The character that asks the kids if they want to get high on South Park, of course.

A ridiculously horrible human being, and that's what makes him so funny.

from a British show I've recently discovered on Netflix called The League of Gentlemen.

"Hello, hello? What's going on? What's all this shouting? We'll have no trouble here!"
"This is a local shop, for local people; there's nothing for you here"

http://en.wikipedia.org/wiki/The_League_of_Gentlemen_(comedy)

Some of the sketches in this show are so black in the black comedy genre that I'm almost disgusted at myself for laughing at them but laugh I do.

was seriously twisted. I enjoyed watching that couple the most.