Well, it seems like almost everyone is doing this, so I might as well, too. Here are my unsurprising results.

INTPs live in the world of theoretical possibilities. They see everything in terms of how it could be improved, or what it could be turned into. They live primarily inside their own minds, having the ability to analyze difficult problems, identify patterns, and come up with logical explanations. They seek clarity in everything, and are therefore driven to build knowledge. They are the "absent-minded professors", who highly value intelligence and the ability to apply logic to theories to find solutions.

- Portrait of an INTP (The Personality Page)

Famous INTP personalities:

Abraham Lincoln - American President
Albert Einstein - German physicist
Carl Jung - Swiss psychiatrist
Charles Darwin - English naturalist
Rene Descartes - French philosopher
...
*cough*
...
Mary-Kate and Ashley Olsen - actresses

I bet you can guess which entry on that list just somehow is not like me at ALL.

That's right. Charles Darwin.