This guy is a kind of nervous visual version of what you'd imagine Gary Larson to be like. But his subtle, offbeat, often sotto voce humor really tickles my funnybone. It's almost like it's accidentally funny, but you know he's a real professional and that it takes lots of practice and hard work. If you can find this TV special (HBO doesn't seem to have it any more) you'll enjoy it. TV Guide listed this as one of the 100 Funniest things TV has ever done, and they're right.
Jake Johannsen: This'll Take About an Hour
(1992 TV Special)
One of the funniest specials ever done
24 February 2001