T. R. Knight Height, Weight, Age, Body Statistics

T. R. Knight Quick Info
Height5 ft 8 in
Weight70 kg
Date of BirthMarch 26, 1973
Zodiac SignAries
SpousePatrick B. Leahy

T. R. Knight is an American actor, voiceover artist, and stage actor who is best known for portraying the character of Dr. George O’Malley on the ABC medical drama Grey’s Anatomy. He has also been cast in shows and movies like The Good Wife, The CatchLast Request42, The Comey RuleWill & GraceGod Friended MeLaw & Order: Special Victims UnitCharlie Lawrence11.22.63A Year and Change, Genius: EinsteinWhen We Rise, and The Flight Attendant.

Born Name

Theodore Raymond Knight

Nick Name

T. R.

T. R. Knight as seen at the Rockefeller Center in New York City, New York in April 2018
T. R. Knight as seen at the Rockefeller Center in New York City, New York in April 2018 (T. R. Knight / Instagram)

Sun Sign


Born Place

Minneapolis, Minnesota, United States


Los Feliz, Los Angeles, California, United States





For grades K-8, T. R. Knight studied at Annunciation Catholic School in Minneapolis. He then got enrolled at the Academy of Holy Angels in Richfield, Knight and after graduating high school, he attended the University of St. Thomas for a brief period of time as he soon dropped out to pursue acting.


Actor, Voiceover Artist, Stage Actor


  • Father – Wayne Raymond Knight
  • Mother – Shirley Rose (Logelin)
  • Sibling – Danny Knight (Brother)
  • Others – Herbert Edmund Logelin (Maternal Grandfather), Malinda/Melinda D. Dressel (Maternal Grandmother)



T. R. Knight smiling for a picture along with Kaley Cuoco in November 2020
T. R. Knight smiling for a picture along with Kaley Cuoco in November 2020 (T. R. Knight / Instagram)


5 ft 8 in or 173 cm


70 kg or 154.5 lbs

Boyfriend / Spouse

T. R. Knight has dated –

  1. Luke Macfarlane (2005-2006) – He was romantically involved with Canadian actor and singer Luke Macfarlane from 2005 to 2006.
  2. Mark Cornelsen (2007-2009) – In the year 2007, he started going out with activist Mark Cornelsen but the couple broke up in October 2009.
  3. Patrick B. Leahy (2013-Present) – Knight married ballet dancer and author Mark Cornelsen on October 5, 2013, in Hudson, New York.

Race / Ethnicity


He is of German, French, and English descent.

Hair Color

Light Brown

Eye Color


Sexual Orientation


He once said, “I guess there have been a few questions about my sexuality, and I’d like to quiet any unnecessary rumors that may be out there. While I prefer to keep my personal life private, I hope the fact that I’m gay isn’t the most interesting part of me.”

Distinctive Features

Charming smile


He was raised Catholic.

T. R. Knight as seen in a black-and-white photo
T. R. Knight as seen in a black-and-white photo (Tafkargb / English Wikipedia / CC BY 2.5)

T. R. Knight Facts

  1. He was 12 years old when he got involved with the Guthrie Theater.
  2. He was offered the Conners Foundation Scholarship as a freshman and apprenticed at the Children’s Theatre Company.
  3. Along with his brother, T. R. Knight used to work at the local Red Owl supermarket.
  4. He appeared as Harold Parrott in 42, a 2013 biographical sports film about baseball player Jackie Robinson.
  5. For his role as Dr. George O’Malley on Grey’s Anatomy, he dyed his hair. Also, this role got him nominated for Primetime Emmy Award for “Outstanding Supporting Actor in a Drama Series” and Satellite Award for “Best Supporting Actor – Series, Miniseries or Television Film”.
  6. In 2017, T. R. Knight co-starred as Carl (The Husband) in the musical film, Hello Again, in which his co-stars included Sam Underwood, Nolan Gerard Funk, Jenna Ushkowitz, Audra McDonald, Martha Plimpton, and Rumer Willis.
  7. He has been friends with Katherine Heigl, his former Grey’s Anatomy co-star. Also, he was a groomsman at her wedding to Josh Kelley.

Featured Image by T. R. Knight / Instagram

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