The 10 Most Surprising Season Finales (Spoiler Alert!)
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9 of 10
"Grey's Anatomy" has had many a good finale twist ending. Denny Duquette dying after finally getting a heart transplant was a particularly wrenching one. But remember when Addison Shepard showed up in the finale of season one and we discovered for the first time that Dr. McDreamy was actually married? Shocking.