when does addison come back to grey's anatomy season 4
Grey's Anatomy (season 4) Numerous supporting characters have been given recurring appearances in the progressive storyline, including former Gilmore Girls actor Edward Herrmann who appeared in three episodes. Seth Green of Buffy the Vampire Slayer guest starred in two episodes, whereas Lauren Stamile portrayed nurse Rose, a love interest for Derek.[10] Former regular Kate Walsh appeared for the first time since her departure on May 1, 2008 receiving a special guest star billing in the role of Addison Montgomery, now the main character of the spin-off Private Practice. Jeff Perry, Loretta Devine and Debra Monk reprised their roles as Thatcher Grey, Adele Webber and Louise O'Malley, respectively. Diahann Carroll and Elizabeth Reaser continued their season three-introduced roles as Jane Burke and Rebecca Pope, respectively.