Kate Walsh returned to 'Grey's Anatomy' as Addison. In the January 29 episode, Addison visited Amelia, who was still on sabbatical from Grey Sloan Memorial Hospital. Addison and Amelia helped a pregnant patient with a tumor affecting her sight. As she tried to get Amelia to scrub back in, Addison shared that her marriage to Jake might be over. She said Jake made her choose marriage or career, and she chose her career.
