Robert James Fischer
"All I ever want to do, ever, is play chess."
Fischer is considered the greatest chess player of all time. But, you know what? From what I've heard of him, he's a jerk, a real kneebiter. True, he was good, and he knew it. But, he was, and probably still is, too cocky. Typical American Sportsplayer.
Garry Kimovich Kasparov
Achieved the title of Grand Master (GM) on his 17th birthday.

Was the youngest world champion at the age of 22.

Is currently the highest rated player there has ever been in the history of chess.
Finally got to my favorites...
Anatoly Evgenievich Karpov
At the age of 15, Karpov became one of the youngest Soviet players ever to gain the title of National Master. He became World Champion shortly before his 24th birthday because Fischer refused to defend his title. Karpov then began playing at a series of difficult tournaments, proving that he deserved the title of World Champion, even if he had gained the title by default. He has accumulated the finest tournament record in history.
"To be champion requires more than simply being a strong player; one has to be a strong human being as well."

"Let us say the game may be continued in two ways: one of them is a beautiful tactical blow that gives rise to variations that don't yield to precise calculation; the other is clear positional pressure that leads to an endgame with microscopic chances of victory... I would choose the latter without thinking twice. If the opponent offers keen play I don't object; but in such cases I get less satisfaction, even if I win, than from a game conducted according to all the rules of strategy with its ruthless logic."
On a personal note, this GM seems to be very kind. Yes, I've met him. Shook his hand as he presented me with a medal, and had him sign our team's 1st place trophy. He was really polite about it all.
Chilean GM Ivan Morovic
Okay, so he's not precisely famous. But, I played him in a simul, so of course he has to be here    =)
Hosted by www.Geocities.ws

1