Robert Sean Leonard
ActingTotal Credits
52
Acting
51
First Credit
1951
Latest Credit
2026
House
James Wilson
2004
The Good Doctor
Shamus O'Malley
2017
Dead Poets Society
Neil Perry
1989
Law & Order: Special Victims Unit
Kenneth O'Dwyer
1999
The Outer Limits
Robby Archer
1995
The Gilded Age
Matthew Forte
2022
The Blacklist
Frederick Barnes
2013
The Good Wife
Del Paul
2009
The Hot Zone
Walter Humbolt
2019
Falling Skies
Dr. Roger Kadar
2011
A Painted House
Jesse Chandler
2003
The Age of Innocence
Theodore "Ted" Archer
1993
Battle Creek
Brock
2015
Much Ado About Nothing
Claudio
1993
Tape
Jon
2001
The Terror: Devil in Silver
Director Cleave
2026
The Boys Next Door
Barry Klemper
1996
Swing Kids
Peter Müller
1993
The Last Days of Disco
Tom
1998
The Manhattan Project
Max
1986
Mr. & Mrs. Bridge
Douglas Bridge
1990
In the Gloaming
Danny
1997
Married to It
Chuck Bishop
1991
Standoff
Agent Jamie Doolin
1998
My Best Friend Is a Vampire
Jeremy Capello
1987
The I Inside
Peter
2004
Safe Passage
Alfred
1994
Killer: A Journal of Murder
Henry Lesser
1996
Ground Control
Cruise
1998
The Hottest State
Thanks
2007
I Love You, I Love You Not
Angel of Death
1996
A Glimpse of Hell
LT(JG) Dan Meyer
2001
Driven
Demille Bly
2001
Chelsea Walls
Terry
2001
Act One
Tim
2026
House M.D.: The Doctor Directs
Actor
2012
Normandy: The Great Crusade
Robert Sales (voice)
1994
Nantucket
Narrator
2011
Into the Deep: America, Whaling & The World
Herman Melville (voice)
2010
Hallmark Hall of Fame
Jesse Chandler
1951
Going Live!
Self
1987
House: Swan Song
Self
2012
Reluctant Saint: Francis of Assisi
Actor
2003
Wasteland
Jesse's ex
1999
Bluffing It
Rusty Duggan
1987
My Two Loves
Larry Taylor
1986
TVTony Awards
Self - Nominee
1956
TVThe Comedy Factory
Garrett
1985
TVWorking Shakespeare
Actor
2003
MovieThe Invention of Love
Young Housman
2001
MovieEugene O’Neill: A Documentary Film
Self
2006
RSC Meets USA: Working Shakespeare
Self