The Insider has learned that T.R. Knight, who plays Dr. George O'Malley, will be appearing on the Ellen DeGeneres Show tomorrow, January 17.

It will be interesting to see a sit-down interview with Knight, who is one of the Grey's Anatomy cast members about whom relatively little is known.

A stage actor before appearing on the hit series, and a man who maintains a low profile, the 33-year-old Minnesota native admitted he is gay last fall - stating that he hopes that isn't seen as the most important part of him. It's not, and this interview with Ellen will hopefully enable fans to find out a lot more about this talented performer.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.