Robert Sean Leonard

Acting

Robert Sean Leonard

Born 28 February 1969 · Westwood, New Jersey, USA · 57

​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

Highlights

The Good Doctor2017 · Series · Shamus O'Malley
Dead Poets Society1989 · Film · Neil Perry
House2004 · Series · James Wilson
Law & Order: Special Victims Unit1999 · Series · Kenneth O'Dwyer
The Blacklist2013 · Series · Frederick Barnes
Falling Skies2011 · Series · Dr. Roger Kadar

Filmography

Movies

30 films

Act One2026 · Film · Tim
House M.D.: The Doctor Directs2012 · Film
Into the Deep: America, Whaling & The World2010 · Film · Herman Melville (voice)
The I Inside2004 · Film · Peter
A Painted House2003 · Film · Jesse Chandler
Reluctant Saint: Francis of Assisi2003 · Film
Tape2001 · Film · Jon
Chelsea Walls2001 · Film · Terry
Driven2001 · Film · Demille Bly
The Invention of Love2001 · Film · Young Housman
A Glimpse of Hell2001 · Film · LT(JG) Dan Meyer
Ground Control1998 · Film · Cruise
The Last Days of Disco1998 · Film · Tom
Standoff1998 · Film · Agent Jamie Doolin
In the Gloaming1997 · Film · Danny
Killer: A Journal of Murder1996 · Film · Henry Lesser
I Love You, I Love You Not1996 · Film · Angel of Death
The Boys Next Door1996 · Film · Barry Klemper
Safe Passage1994 · Film · Alfred
Normandy: The Great Crusade1994 · Film · Robert Sales (voice)
The Age of Innocence1993 · Film · Theodore "Ted" Archer
Much Ado About Nothing1993 · Film · Claudio
Swing Kids1993 · Film · Peter Müller
Married to It1991 · Film · Chuck Bishop
Mr. & Mrs. Bridge1990 · Film · Douglas Bridge
Dead Poets Society1989 · Film · Neil Perry
My Best Friend Is a Vampire1987 · Film · Jeremy Capello
Bluffing It1987 · Film · Rusty Duggan
The Manhattan Project1986 · Film · Max
My Two Loves1986 · Film · Larry Taylor

Filmography

Series

14 shows

The Terror: Devil in Silver2026 · Series · Director Cleave
The Gilded Age2022 · Series · Matthew Forte
The Hot Zone2019 · Series · Walter Humbolt
The Good Doctor2017 · Series · Shamus O'Malley
Battle Creek2015 · Series · Brock
The Blacklist2013 · Series · Frederick Barnes
Falling Skies2011 · Series · Dr. Roger Kadar
The Good Wife2009 · Series · Del Paul
House2004 · Series · James Wilson
Working Shakespeare2003 · Series
Wasteland1999 · Series · Jesse's ex
Law & Order: Special Victims Unit1999 · Series · Kenneth O'Dwyer
The Outer Limits1995 · Series · Robby Archer
The Comedy Factory1985 · Series · Garrett