鉴于新剧Private Practice要等到秋天，Dr.Addison将于春季参与GA一集的演出。
具体参与哪集，还未确定，GA最新一集将于4月24日播出，共有五集。
原文（转自hollywoodinsider）
引用:
The redhead is back at Seattle Grace! ABC has confirmed that Kate Walsh, whose freshman show Private Practice is on hiatus until fall, will return to Grey's Anatomy as Dr. Addison Montgomery for one episode this spring. Executive Producer Shonda Rhimes is still fleshing out the script, so there's no word yet on when Walsh's episode will air. ABC will air five originals of Grey's beginning April 24.
The last time Addison was seen walking the hallways of Seattle Grace was in the series debut of Practice, which is this season's second most-watched new drama (10.76 million). In the Practice pilot, Addison said goodbye to Seattle Grace to start a new life and career at the Oceanside Wellness Center in Southern California.
不知道Addie的归来，会给SGH带来哪些变化，ABC已经预订了新一季的PP，Addie的归来应该仅仅是客串，或许会引出什么新的人物或事件也好说不定
