Curt Schilling is a DEVOTED Everquest player. He is, however, not alone in MLB as an Never-Rest-er. Apparently, laptops with EverCrack on them are catching on around the league. *shrug*
I don't know of anyother famous people who game...
How about normal people who game, and their characters are now more famous than they? Such as the "players" from Mr. Gygax's campaigns, etc.
One of my friend's original characters was named Khelben, and IIRC, he carried a black staff, and was a magic user of some skill. He had to move, left his character with his gaming group cause they were getting to be high level.. and lo and behold.. a couple of years later... TSR introduced his character as a FR iconic. *too cool*
that's all.