Bobcat began doing stand up in the mid 80's, sharing a bill with Robin Williams, and had several initial cameos on small films like Tapeheads, (awesome) alongside John Cusack and Tim Robbins. I think the first time I ever saw him was in Police Academy 2, where he played the leader of a street gang, Zed (awesome). He later wrote, directed and starred in Shakes the Clown (awesome), and had his fingers in several other pies, including cameos in Twisted Sister and Nirvana videos. Frankly, I think his best work was on Scrooged, which I think might also be the best Christmas movie of all time. Seriously.
His most recent work was a reunion with Robin Williams in World's Greatest Dad, a dark comedy he wrote and directed, to critical favor. In this clip, you can see him getting what many may agree to be some just desserts for an artist who has gone through a delicate and lengthy maturation process, only to emerge as a refined and unique voice often overlooked for his lower-brow exploits (Police Academy 2 = still awesome, I don't care what anybody says). And yes, I am still talking about Bobcat Goldthwait.
