Welll....let's see. My great-grandfather, George Simon...he invented Simonize Car Wax. Not exactly "famous"...but it's cool to see his name on stuff all the time.

And not a direct relation...but I have a first cousin who is best friends with Michael McKean's wife. Michael McKean is best known for playing Lenny on Laverne & Shirley back in the 70's...and he's also Billy Crystal's best friend. So my cousin gets to hang out with that crowd. Must be nice! LOL