Robert Sean Leonard

Acting • 1969-02-28 • Westwood, New Jersey, USA

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.

Known For

8.0

Law & Order: Special Victims Unit

1999

8.6

House

2004

8.3

Dead Poets Society

1989

7.1

Falling Skies

2011

7.7

The Gilded Age

2022

6.7

Swing Kids

1993

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Filmography

2026
The Terror: Devil in SilverTV
Director Cleave • 1 episodes
★ 6.7
2026
Act OneFilm
Tim
★ 10.0
2022
The Gilded AgeTV
Matthew Forte • 7 episodes
★ 7.7
2019
The Hot ZoneTV
Walter Humbolt • 6 episodes
★ 7.1
2017
The Good DoctorTV
Shamus O'Malley • 1 episodes
★ 8.5
2015
Battle CreekTV
Brock • 1 episodes
★ 6.9
2014
Dead Poets in NYCFilm
Self
2013
The BlacklistTV
Frederick Barnes • 1 episodes
★ 7.6
2012
House M.D.: The Doctor DirectsFilm
★ 10.0
2012
House: Swan SongFilm
Self
★ 8.0
2011
Falling SkiesTV
Dr. Roger Kadar • 22 episodes
★ 7.1
2011
NantucketFilm
Narrator
★ 7.5
2010
Into the Deep: America, Whaling & The WorldFilm
Herman Melville (voice)
★ 9.0
2009
The Good WifeTV
Del Paul • 1 episodes
★ 7.6
2006
Eugene O’Neill: A Documentary FilmFilm
Self
2004
HouseTV
James Wilson • 176 episodes
★ 8.6
2004
The I InsideFilm
Peter
★ 5.9
2003
A Painted HouseFilm
Jesse Chandler
★ 7.0
2003
Reluctant Saint: Francis of AssisiFilm
★ 6.3
2003
Working ShakespeareTV
2001
DrivenFilm
Demille Bly
★ 5.2
2001
TapeFilm
Jon
★ 6.9
2001
Chelsea WallsFilm
Terry
★ 4.2
2001
A Glimpse of HellFilm
LT(JG) Dan Meyer
★ 5.3
2001
The Invention of LoveFilm
Young Housman
★ 6.0
1999
Law & Order: Special Victims UnitTV
Kenneth O'Dwyer • 3 episodes
★ 8.0
1999
WastelandTV
Jesse's ex • 13 episodes
★ 7.8
1998
The Last Days of DiscoFilm
Tom
★ 6.3
1998
Ground ControlFilm
Cruise
★ 5.7
1998
StandoffFilm
Agent Jamie Doolin
★ 5.9
1997
In the GloamingFilm
Danny
★ 6.0
1996
Killer: A Journal of MurderFilm
Henry Lesser
★ 5.9
1996
I Love You, I Love You NotFilm
Angel of Death
★ 5.3
1996
The Boys Next DoorFilm
Barry Klemper
★ 6.7
1995
The Outer LimitsTV
Robby Archer • 1 episodes
★ 7.7
1994
Safe PassageFilm
Alfred
★ 6.0
1994
Normandy: The Great CrusadeFilm
Robert Sales (voice)
★ 10.0
1993
The Age of InnocenceFilm
Theodore "Ted" Archer
★ 7.0
1993
Much Ado About NothingFilm
Claudio
★ 6.9
1993
Swing KidsFilm
Peter Müller
★ 6.7
1991
Married to ItFilm
Chuck Bishop
★ 6.0
1990
Mr. & Mrs. BridgeFilm
Douglas Bridge
★ 6.1
1989
Dead Poets SocietyFilm
Neil Perry
★ 8.3
1987
My Best Friend Is a VampireFilm
Jeremy Capello
★ 6.0
1987
Going Live!TV
Self • 1 episodes
★ 8.0
1987
Bluffing ItFilm
Rusty Duggan
★ 6.5
1986
The Manhattan ProjectFilm
Max
★ 6.2
1986
My Two LovesFilm
Larry Taylor
★ 4.8
1985
The Comedy FactoryTV
Garrett • 1 episodes
1956
Tony AwardsTV
Self - Nominee • 1 episodes
1951
Hallmark Hall of FameTV
Jesse Chandler • 1 episodes
★ 8.8