How Have Cast Members Left on Grey's Anatomy?
15 Grey's Anatomy Character Exits That Devastated Us, Ranked
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Brought in as Burke's replacement, Erica Hahn develops a romantic relationship with Callie, only to leave her at the beginning of season five. They first argue over the cardiothoracic surgeon's decision to report Izzie, then later Callie's uncertainty around her sexuality. It was nice having Brooke Smith on the show for a while. We were bummed out, but not devastated, to see her go.