T. R. Knight
Actor
53 years (Mar 26, 1973)Minneapolis, Minnesota, USA
Known for
T. R. Knight has built a career as an American television actor, a fixture of the schedule for a good while. The roles cluster in drama. Television has provided the bulk of the work. 'Grey's Anatomy' is the anchor of the filmography, built on the part of George O'Malley. '42' rounds out the better-known part of the filmography. Two decades and more separate the first credit from the latest.
T. R. Knight
Actor
Known for
T. R. Knight has built a career as an American television actor, a fixture of the schedule for a good while. The roles cluster in drama. Television has provided the bulk of the work. 'Grey's Anatomy' is the anchor of the filmography, built on the part of George O'Malley. '42' rounds out the better-known part of the filmography. Two decades and more separate the first credit from the latest.
TV Shows: 13 titles
Plays George O'Malley
Grey's Anatomy
2005
Plays Sir Cedric (voice)
The Bravest Knight
2019
Plays Davey Bowden
The Flight Attendant
2020
Plays J. Edgar Hoover
Genius
2017
Plays Jordan Karahalios
The Good Wife
2009
Plays Johnny Clayton
11.22.63
2016
Plays Tommy
The Catch
2016
Plays Reince Priebus
The Comey Rule
2020
Plays Zero Adams
CSI: Crime Scene Investigation
2000
Plays Neil Colby
Law & Order: Criminal Intent
2001
Plays Dexter Murphy
Will & Grace
2017
Plays Alex
Frasier
1993
Plays Gideon
God Friended Me
2018
Latest Trailers
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Forge
Full Filmography
Sydney vs. Sean
Bob
2026
Forge
Sandy Baker
2026
Adam the First
Jacob Jr.
2024
The Flight Attendant
Davey Bowden
2020–
Grey's Anatomy
George O'Malley
2020Season 17
The Comey Rule
Reince Priebus
2020Season 1
Will & Grace
Dexter Murphy
2019Season 3
God Friended Me
Gideon
2019Season 2
The Bravest Knight
Sir Cedric (voice) · 26 episodes
2019–
Frequently Asked Questions
How old is T. R. Knight and where are they from?
T. R. Knight is 53 years old, born on March 26, 1973 in Minneapolis, Minnesota, USA.
What are the most famous roles of T. R. Knight?
T. R. Knight is best known for roles in 42, Hello Again, A Year and Change.
How many movies has T. R. Knight been in?
Over a 24-year career (since 2002), T. R. Knight has appeared in 9 movies and 13 TV shows.
What was T. R. Knight's first movie?
The career of T. R. Knight began with Garmento (2002).
What is T. R. Knight's most recent movie or series?
T. R. Knight's most recent release is Sydney vs. Sean, which premiered on November 5, 2026.
What TV shows has T. R. Knight appeared in?
On television, T. R. Knight has appeared in Grey's Anatomy, Law & Order: Special Victims Unit, 11.22.63, CSI: Crime Scene Investigation.
T. R. Knight
1973-03-26 · Minneapolis, Minnesota, USA
Theodore Raymond "T. R." Knight (born March 26, 1973) is an American actor. Knight's most high-profile role to date was his role as Dr. George O'Malley on ABC's medical drama Grey's Anatomy.