T.R. Knight Dating Mark Cornelsen

at .

Looks like T.R. Knight is off the market.

The Emmy-nominated Grey's Anatomy star, who plays George O'Malley, stepped out with boyfriend Mark Cornelsen during the 2008 Elton John AIDS Foundation Oscar Party held at the Pacific Design Center in West Hollywood on Sunday.

The two held hands and looked very happy together. See below:

T.R. Knight, Mark Cornelsen

Mark Cornelsen and Grey's Anatomy star T.R. Knight.

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

Show Comments
Tags:

Grey's Anatomy Quotes

COOPER: "It's wrong?"
NAOMI: "You need to meet a grown up. You need to date someone your own age."
VIOLET: "Someone without a porny internet name and perhaps no criminal past."
NAOMI: "A nice girl."
VIOLET: "A reliable girl."
NAOMI: "Someone who you can have a relationship with."
VIOLET: "You’re a respected doctor."
NAOMI: "Go out in the real world. Meet a woman your own age and go out."
VIOLET: "Be a man."

ADDISON: "You work with your ex-husband in a shrine for your ex-husband."
NAOMI: "It’s actually a good book. And we're friends. And we stayed friends after we divorced. It’s very healthy. We're healthy."
ADDISON: "What happened between you and Sam?"
NAOMI: "Addison, you and I were close in med school, but it was a long time ago."
ADDISON: "Oh, Naomi. Come on. You can’t stay mad at me forever. I know you."