Robert Sean Leonard

Acting • 50 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.

🎭 Acting Roles (30)

Ranked by Prestige & Popularity
Dead Poets Society

Dead Poets Society

1989 ⭐ 4.1
as Neil Perry
The Good Doctor

The Good Doctor

2017 ⭐ 4.2
as Shamus O'Malley
House

House

2004 ⭐ 4.3
as James Wilson
Law & Order: Special Victims Unit

Law & Order: Special Victims Unit

1999 ⭐ 4.0
as Kenneth O'Dwyer
The Blacklist

The Blacklist

2013 ⭐ 3.8
as Frederick Barnes
Falling Skies

Falling Skies

2011 ⭐ 3.6
as Dr. Roger Kadar
The Age of Innocence

The Age of Innocence

1993 ⭐ 3.5
as Theodore "Ted" Archer
Driven

Driven

2001 ⭐ 2.6
as Demille Bly
Much Ado About Nothing

Much Ado About Nothing

1993 ⭐ 3.5
as Claudio
The Good Wife

The Good Wife

2009 ⭐ 3.8
as Del Paul
The I Inside

The I Inside

2004 ⭐ 3.0
as Peter
The Gilded Age

The Gilded Age

2022 ⭐ 3.9
as Matthew Forte
Swing Kids

Swing Kids

1993 ⭐ 3.4
as Peter Müller
Tape

Tape

2001 ⭐ 3.5
as Jon
The Outer Limits

The Outer Limits

1995 ⭐ 3.9
as Robby Archer
The Last Days of Disco

The Last Days of Disco

1998 ⭐ 3.1
as Tom
The Hot Zone

The Hot Zone

2019 ⭐ 3.5
as Walter Humbolt
The Manhattan Project

The Manhattan Project

1986 ⭐ 3.1
as Max
My Best Friend Is a Vampire

My Best Friend Is a Vampire

1987 ⭐ 3.0
as Jeremy Capello
Battle Creek

Battle Creek

2015 ⭐ 3.5
as Brock
Mr. & Mrs. Bridge

Mr. & Mrs. Bridge

1990 ⭐ 3.0
as Douglas Bridge
Ground Control

Ground Control

1998 ⭐ 2.8
as Cruise
Killer: A Journal of Murder

Killer: A Journal of Murder

1996 ⭐ 3.0
as Henry Lesser
The Terror: Devil in Silver

The Terror: Devil in Silver

2026 ⭐ 3.4
as Director Cleave
I Love You, I Love You Not

I Love You, I Love You Not

1996 ⭐ 2.6
as Angel of Death
In the Gloaming

In the Gloaming

1997 ⭐ 3.0
as Danny
Married to It

Married to It

1991 ⭐ 3.0
as Chuck Bishop
Chelsea Walls

Chelsea Walls

2001 ⭐ 2.1
as Terry
Safe Passage

Safe Passage

1994 ⭐ 3.0
as Alfred
A Painted House

A Painted House

2003 ⭐ 3.5
as Jesse Chandler