Robert Sean Leonard (born February 28, 1969) is an award-winning American actor. He has regularly starred in Broadway and off-Broadway productions, but is most known for his roles on the medical TV drama House and in the film Dead Poets Society.
House
Series • 2004
Law & Order: Special Victims Unit
Series • 1999
The Blacklist
Series • 2013
The Good Doctor
Series • 2017
The Good Wife
Series • 2009
The Gilded Age
Series • 2022
The Outer Limits
Series • 1995
Falling Skies
Series • 2011
The Terror: Devil in Silver
Series • 2026
Dead Poets Society
Movie • 1989
The Hot Zone
Series • 2019
The Comedy Factory
Series • 1985
Battle Creek
Series • 2015
Driven
Movie • 2001
The Age of Innocence
Movie • 1993
Much Ado About Nothing
Act One
Movie • 2026
Working Shakespeare
Series • 2003
The Last Days of Disco
Movie • 1998
Swing Kids
The I Inside
Movie • 2004
In the Gloaming
Movie • 1997
My Best Friend Is a Vampire
Movie • 1987
Mr. & Mrs. Bridge
Movie • 1990
House M.D.: The Doctor Directs
Movie • 2012
The Manhattan Project
Movie • 1986
Tape
Killer: A Journal of Murder
Movie • 1996
I Love You, I Love You Not
Ground Control