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'Grey's Anatomy' Spoilers
Tonight's episode of Grey's Anatomy is titled, "Guess Who's Coming To Dinner Tonight?" and the official synopsis reads: In the midst of the sisters’ dinner party, Maggie ditches her cooking duties to rush to the hospital. Meanwhile, April steps in to help cook as an attempt to avoid Jackson, and Arizona nervously waits to find out more about Callie’s new girlfriend. ABC further reports that tonight, the character Callie is introduces everyone to Penny, totally unaware of her link to Derek, Meredith, and everyone else there at the dinner party. Meredith tries to fight her inner-feelings about the situation and Alex seems to be the only person who notices something is off with her. For some spoiler photos, click through our gallery to check out the best still shot photos from the episode. (ABC/Mitchell Haaseth)