Robert Sean Leonard

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.

Career Overview

Robert Sean Leonard has 44 screen credits in a career dating back to 1986. Signature works include House, Dead Poets Society, Swing Kids. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.

Personal Facts

Known For

Acting

Gender

male

Known Credits

44

Birth Date

1969-02-28 00:00:00

Birth Place

Westwood, New Jersey, USA

Known For

• 

  House
• 

  Dead Poets Society
• 

  Swing Kids
• 

  My Best Friend Is a Vampire
• 

  Standoff
• 

  In the Gloaming

Frequent Collaborators

• David Robb (2 collaborations)
• Hugh Laurie (1 collaborations)
• Omar Epps (1 collaborations)
• Jesse Spencer (1 collaborations)
• Odette Annable (1 collaborations)
• Peter Jacobson (1 collaborations)
• Lo Mutuc (1 collaborations)
• Robin Williams (1 collaborations)
• Ethan Hawke (1 collaborations)
• Josh Charles (1 collaborations)

Credits

• actors (43 credits)

  • RSC Meets USA: Working Shakespeare

    Self

    actor

    actors
    2026
  • Act One

    Tim

    actor

    actors
    2026
  • The Gilded Age

    - Wonders Never Cease (2023) ... Matthew Forte actor actors

    - Warning Shots (2023) ... Matthew Forte actor actors

    - Close Enough to Touch (2023) ... Matthew Forte actor actors

    - His Grace the Duke (2023) ... Matthew Forte actor actors

    - Head to Head (2023) ... Matthew Forte actor actors
    2022
  • The Hot Zone

    - Hidden (2019) ... Walter Humbolt actor actors

    - Quarantine (2019) ... Walter Humbolt actor actors

    - Expendable (2019) ... Walter Humbolt actor actors

    - Charlie Foxtrot (2019) ... Walter Humbolt actor actors

    - Cell H (2019) ... Walter Humbolt actor actors
    2019
  • The Good Doctor

    - Claire (2019) ... Shamus O'Malley actor actors
    2017
  • The Blacklist

    - Frederick Barnes (2013) ... Frederick Barnes actor actors
    2013
  • House M.D.: The Doctor Directs

    actor

    actors
    2012
  • House: Swan Song

    Self

    actor

    actors
    2012
  • Nantucket

    Narrator

    actor

    actors
    2011
  • Falling Skies

    - Shoot the Moon (2014) ... Dr. Roger Kadar actor actors

    - Space Oddity (2014) ... Dr. Roger Kadar actor actors

    - Drawing Straws (2014) ... Dr. Roger Kadar actor actors

    - Till Death Do Us Part (2014) ... Dr. Roger Kadar actor actors

    - A Thing With Feathers (2014) ... Dr. Roger Kadar actor actors
    2011
  • Into the Deep: America, Whaling & The World

    Herman Melville (voice)

    actor

    actors
    2010
  • The Good Wife

    - Dear God (2014) ... Del Paul actor actors
    2009
  • Eugene O’Neill: A Documentary Film

    Self

    actor

    actors
    2006
  • House

    James Wilson

    actor

    actors

    - Everybody Dies (2012) ... James Wilson actor actors

    - Holding On (2012) ... James Wilson actor actors

    - Post Mortem (2012) ... James Wilson actor actors

    - The C-Word (2012) ... James Wilson actor actors

    - Body and Soul (2012) ... James Wilson actor actors
    2004
  • The I Inside

    Peter

    actor

    actors
    2004
  • A Painted House

    Jesse Chandler

    actor

    actors
    2003
  • Reluctant Saint: Francis of Assisi

    actor

    actors
    2003
  • Tape

    Jon

    actor

    actors
    2001
  • Chelsea Walls

    Terry

    actor

    actors
    2001
  • Driven

    Demille Bly

    actor

    actors
    2001
  • The Invention of Love

    Young Housman

    actor

    actors
    2001
  • A Glimpse of Hell

    LT(JG) Dan Meyer

    actor

    actors
    2001
  • Law & Order: Special Victims Unit

    - Catfishing Teacher (2016) ... Kenneth O'Dwyer actor actors

    - Transgender Bridge (2015) ... Kenneth O'Dwyer actor actors

    - Perverted Justice (2015) ... Kenneth O'Dwyer actor actors
    1999
  • Ground Control

    Cruise

    actor

    actors
    1998
  • The Last Days of Disco

    Tom

    actor

    actors
    1998
  • Standoff

    Agent Jamie Doolin

    actor

    actors
    1998
  • In the Gloaming

    Danny

    actor

    actors
    1997
  • Killer: A Journal of Murder

    Henry Lesser

    actor

    actors
    1996
  • I Love You, I Love You Not

    Angel of Death

    actor

    actors
    1996
  • The Boys Next Door

    Barry Klemper

    actor

    actors
    1996
  • The Outer Limits

    - Nest (2000) ... Robby Archer actor actors
    1995
  • Safe Passage

    Alfred

    actor

    actors
    1994
  • Normandy: The Great Crusade

    Robert Sales (voice)

    actor

    actors
    1994
  • The Age of Innocence

    Theodore "Ted" Archer

    actor

    actors
    1993
  • Much Ado About Nothing

    Claudio

    actor

    actors
    1993
  • Swing Kids

    Peter Müller

    actor

    actors
    1993
  • Married to It

    Chuck Bishop

    actor

    actors
    1991
  • Mr. & Mrs. Bridge

    Douglas Bridge

    actor

    actors
    1990
  • Dead Poets Society

    Neil Perry

    actor

    actors
    1989
  • My Best Friend Is a Vampire

    Jeremy Capello

    actor

    actors
    1987
  • Bluffing It

    Rusty Duggan

    actor

    actors
    1987
  • The Manhattan Project

    Max

    actor

    actors
    1986
  • My Two Loves

    Larry Taylor

    actor

    actors
    1986

• crew (1 credits)

  • The Hottest State

    thanks

    crew
    2007