Wrestling

Sean Waltman (Wrestled as X-Pac/Syxx-Pac/1-2-3 Kid/Lightning Kid)

Shawn Micheals, The Icon, The Main Event, The Show Stopper, you catch my drift

Shawn Stasiak (wrestled as Meat and Perfect-Shawn Stasiak, Shawn Stasiak)

Hockey

Sean Burke, NHL Goalie

Shawn Bates, NHL Forward

Actors

Sean Astin of LOTR and Goonies Fame

Sean Bean of LOTR fame

Sean Connery

Academy Award Winner Sean Penn

Other

Me, Sean Bateman

Sean Bateman from Rules of Attraction played by James Van Der Beek

Porn Star Sean Micheals