Season 4, Episode 13 Piece of My Heart
First Aired: May 1, 2008
Addison (Kate Walsh) returns to Seattle Grace to perform a surgery and is surprised at the changes in her former coworkers' lives; Meredith and Derek's clinical trial has its first patient; Ava/Rebecca (Elizabeth Reaser) returns with news for Alex. Dr. Wyatt: Amy Madigan.
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- Premiered: March 27, 2005
- Rating: TV-14
- Premise: Doctors at a Seattle teaching hospital hone their bedside manners on and off the job in this medical drama. (more)
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The Glee alum will play a doctor — and possibly Jo's estranged husband!