I'm related to several famous people, but most of them are dead now so I guess that doesn't count.
I've met a couple of Cardinals players and gotten autographs.
I'm pretty certain I saw Cardinals player Daniel Descalso at Chipotle in Kirkwood, MO.
I've driven past Angels' player (at the time Cardinals player) Albert Pujols' house.
A famous actress came to my church a long time ago. Probably would've been in 2005 because my mom said she held one of my sisters who was a toddler, and she is 12 now.
Not really many face to face interaction.