Not really a famous person, but some freelance animator/video game reviewer. He's known for his videos on Newgrounds and Youtube.

Some examples:

Shameless self-promotion:

It's not just funny, but he also makes some very good points:

This one is totally awesome, I couldn't stop laughing when I watched it the first time:

...and this is just WTF:

All in all, I say ILE. His sense of humour is awesome.