Acting

Robert Sean Leonard

Born 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.

Credits

Newest first

Act One
as Tim
2026
The Terror: Devil in Silver
as Director Cleave
2026
The Gilded Age
as Matthew Forte
2022
The Hot Zone
as Walter Humbolt
2019
The Good Doctor
as Shamus O'Malley
2017
Battle Creek
as Brock
2015
Dead Poets in NYC
as Self
2014
The Blacklist
as Frederick Barnes
2013
House M.D.: The Doctor Directs
2012
House: Swan Song
as Self
2012
Nantucket
as Narrator
2011
Falling Skies
as Dr. Roger Kadar
2011
Into the Deep: America, Whaling & The World
as Herman Melville (voice)
2010
The Good Wife
as Del Paul
2009
The Hottest State
Thanks
2007
Eugene O’Neill: A Documentary Film
as Self
2006
House
as James Wilson
2004
The I Inside
as Peter
2004
Working Shakespeare
2003
A Painted House
as Jesse Chandler
2003
Reluctant Saint: Francis of Assisi
2003
Tape
as Jon
2001
Chelsea Walls
as Terry
2001
Driven
as Demille Bly
2001
The Invention of Love
as Young Housman
2001
A Glimpse of Hell
as LT(JG) Dan Meyer
2001
Wasteland
as Jesse's ex
1999
Law & Order: Special Victims Unit
as Kenneth O'Dwyer
1999
Ground Control
as Cruise
1998
The Last Days of Disco
as Tom
1998
Standoff
as Agent Jamie Doolin
1998
In the Gloaming
as Danny
1997
Killer: A Journal of Murder
as Henry Lesser
1996
I Love You, I Love You Not
as Angel of Death
1996
The Boys Next Door
as Barry Klemper
1996
The Outer Limits
as Robby Archer
1995
Safe Passage
as Alfred
1994
Normandy: The Great Crusade
as Robert Sales (voice)
1994
The Age of Innocence
as Theodore "Ted" Archer
1993
Much Ado About Nothing
as Claudio
1993
Swing Kids
as Peter Müller
1993
Married to It
as Chuck Bishop
1991
Mr. & Mrs. Bridge
as Douglas Bridge
1990
Dead Poets Society
as Neil Perry
1989
My Best Friend Is a Vampire
as Jeremy Capello
1987
Going Live!
as Self
1987
Bluffing It
as Rusty Duggan
1987
The Manhattan Project
as Max
1986
My Two Loves
as Larry Taylor
1986
The Comedy Factory
as Garrett
1985
Tony Awards
as Self - Nominee
1956
Hallmark Hall of Fame
as Jesse Chandler
1951
RSC Meets USA: Working Shakespeare
as Self
—