When Addison (Kate Walsh) first strolled into Seattle Grace Hospital right before the credits rolled on the Grey’s Anatomy Season 1 finale, there was no telling what kind of ride audiences were in for. She introduced herself as “Addison Shepherd,” AKA Derek’s (Patrick Dempsey) estranged wife, and seemed to spell nothing but trouble. However, there was no way of knowing just how much of an impact she would go on to have on the show. She was more than a roadblock for Derek and Meredith’s (Ellen Pompeo) relationship, and she was definitely more than just Derek’s wife. She held her own and was a strong, capable character that was so layered. She may have left Grey’s Anatomy as a series regular in the show’s third season but even with every new character that has come and gone, Addison’s mark on the show has remained strong, and without her, it wouldn’t be what it is today.
Addison Is the Meryl Streep of Maternal-Fetal Medicine on ‘Grey’s Anatomy’
Addison’s joining of the Seattle Grace crew took a bit of convincing. She and Derek were on the outs (he called her Satan!) ,and she had a whole life back in New York. But Richard Webber (James Pickens Jr.) was determined to keep her around, and he got his way, even if she did primarily agree to stay in an attempt to save her marriage with Derek. Her becoming a regular would spell drama for both Meredith and Derek, but while that may have been her original role, she quickly proved that there was much more to her than just the ring on her finger that made her Mrs. Shepherd.
Not only was Addison a phenomenal doctor (and one of the foremost neonatal surgeons in the country) but she also had a lot of heart to her that just brought so much to her character. She fought hard for her marriage, even when it felt hopeless, even when she knew Derek had eyes for Meredith. She cared immensely for her patients and did everything she could for them. And she was an incredible mentor to those around her, most notably Alex Karev (Justin Chambers.) Without her, Alex likely would have stayed his cold, grumpy, pompous self with little remorse for those around him. She forced him onto her service as punishment, but he actually grew to respect it, and thanks to her found a real appreciation and interest in neonatal surgery. Her time as a main character in Grey’s Anatomy may have been brief, but she left an impact.