Use stream of consciousness to answer the following. Theodore Raymond "T.R." Knight (born March 26, 1973) is an American actor. He is best known for his role as Dr. George O'Malley on the ABC medical drama Grey's Anatomy. Having acted on stage since the age of five, Knight had starred on Broadway, off-Broadway, and theatre productions in his home state of Minnesota. He received a Drama Desk Award nomination for his performance in MCC Theater's Scattergood in 2003.

Answer this question based on the passage: actor who plays george in grey's anatomy?
This is the relevant information: He is best known for his role as Dr. George O'Malley on the ABC medical drama Grey's Anatomy. Final answer: Theodore Raymond `` T.R. '' Knight.