Robert Sean Leonard was born on 01 Feb 1969 in Westwood, New Jersey, USA. His birth name was Robert Lawrence Leonard. His is also called Bobby. His height is 183cm.

Robert Sean Leonard appeared in the movie Chelsea Walls(2001), Chelsea Walls(2001), Dead Poets Society(1989), Married to It(1991), Mr. & Mrs. Bridge(1990), The Age of Innocence(1993)。