We have to say, the process of compiling a list of the best athlete cameos has been done to death. We get it; Keith Hernandez was hilarious in Seinfeld (he was), and Mr. Burns' All Star softball team episode of The Simpsons is a classic (it is). We wanted to delve a bit deeper though, really flesh out some more obscure and odd cameos' from our favorite stars in the world of sports.