Still newlywed actress Katherine Heigl made a visit to her good friend and fellow Grey’s Anatomy actor T.R. Knight in Glendale, California. Knight, who answered the door still wearing his gloves from working on a garden, gave a big hug to Katherine. Knight is still reported to be dating the young Mark Cornelsen, but there was some guy in the door way with him. Any idea who the mystery fellow is?

Photo by Hector Vasquez/BuzzFoto.com