The NHL's Los Angeles Kings have a player named Dwight King. So he is both a King and a King.
http://en.wikipedia.org/wiki/Dwight_King
There's a potential list in the making here. I feel like the most famous member of the list would probably be Jim Brown.
http://en.wikipedia.org/wiki/Jim_Brown
There have been other men with the last name Brown who played for the Cleveland Browns.
Are there any other similar examples?