Stefon Marsean Diggs (born November 29, 1993) is an American professional football wide receiver for the New England Patriots of the National Football League (NFL). He has previously played for Minnesota Vikings, Buffalo Bills and Houston Texans.
He has often expressed his love for the show, saying in an Instagram post that he really appreciated being on the show. He has also before tweeted a request to write an episode for either Family Guy or American Dad!.[1]
Stefon provides his own voice in "Nasty Christmas", where he attends Avery Bullock's Christmas party and celebrates being on Stan's winning fantasy football team and offers to play football with Stan.