Robert Sean Leonard
Acting
50
Acting Credits
Biography
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
Filmography
Act One
2026
as Tim
The Terror: Devil in Silver
2026
as Director Cleave
The Gilded Age
2022
as Matthew Forte
The Hot Zone
2019
as Walter Humbolt
The Good Doctor
2017
as Shamus O'Malley
Battle Creek
2015
as Brock
The Blacklist
2013
as Frederick Barnes
House M.D.: The Doctor Directs
2012
House: Swan Song
2012
as Self
Nantucket
2011
as Narrator
Falling Skies
2011
as Dr. Roger Kadar
Into the Deep: America, Whaling & The World
2010
as Herman Melville (voice)
The Good Wife
2009
as Del Paul
Eugene O’Neill: A Documentary Film
2006
as Self
The I Inside
2004
as Peter
House
2004
as James Wilson
A Painted House
2003
as Jesse Chandler
Reluctant Saint: Francis of Assisi
2003
Working Shakespeare
2003
Driven
2001
as Demille Bly
Tape
2001
as Jon
Chelsea Walls
2001
as Terry
A Glimpse of Hell
2001
as LT(JG) Dan Meyer
The Invention of Love
2001
as Young Housman
Wasteland
1999
as Jesse's ex
Law & Order: Special Victims Unit
1999
as Kenneth O'Dwyer
The Last Days of Disco
1998
as Tom
Ground Control
1998
as Cruise
Standoff
1998
as Agent Jamie Doolin
In the Gloaming
1997
as Danny
The Boys Next Door
1996
as Barry Klemper
Killer: A Journal of Murder
1996
as Henry Lesser
I Love You, I Love You Not
1996
as Angel of Death
The Outer Limits
1995
as Robby Archer
Safe Passage
1994
as Alfred
Normandy: The Great Crusade
1994
as Robert Sales (voice)
Swing Kids
1993
as Peter Müller
The Age of Innocence
1993
as Theodore "Ted" Archer
Much Ado About Nothing
1993
as Claudio
Married to It
1991
as Chuck Bishop
Mr. & Mrs. Bridge
1990
as Douglas Bridge
Dead Poets Society
1989
as Neil Perry
My Best Friend Is a Vampire
1987
as Jeremy Capello
Bluffing It
1987
as Rusty Duggan
Going Live!
1987
as Self
The Manhattan Project
1986
as Max
My Two Loves
1986
as Larry Taylor
The Comedy Factory
1985
as Garrett
Tony Awards
1956
as Self - Nominee
Hallmark Hall of Fame
1951
as Jesse Chandler