Supporting actor who earned a Primetime Emmy Award nomination for his role as Dr. George O'Malley on ABC's Grey's Anatomy.

Before Fame

He began performing in a local youth theater at age five.

Trivia

He had a film role in The Last Request (2006).

Family Life

He was romantically linked to Mark Cornelsen from 2007 to 2009. He married Patrick Leahy in 2013.

Associated With

He was a member of Grey's co-star Katherine Heigl's wedding party.

Video

T.R. Knight Highlights