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Robert Sean Leonard turns 44 on Feb. 28, 2013. The actor, who plays Dr. James Wilson on 'House M.D.,' is also known for movies such as 'Swing Kids,' 'Tape,' and 'Dead Poets Society.'
(Pictured: Robert Sean Leonard in a scene from 'House M.D.')
( Photo / Heel and Toe films / Shore Z Productions / FOX)