Addison isn't just back on Grey's Anatomy. She's married to Derek... at least in this unusual dream world/scenario.
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Grey's Anatomy viewers also have reason to smile on the episode "If/Then." Addison makes an appearance on the installment!
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Look who is returning on the Grey's Anatomy episode "If/Then." We get to see Addison back in Seattle Grace.
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Awww, remember when these two were good pals? We'll see them interact again on the Grey's Anatomy episode "If/Then."
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It's a team effort and a family affair on the Grey's Anatomy-Private Practice crossover event January 14, 2010. Can Sloane be helped when Mark and Addison join forces?
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Kate Walsh (Addison) is back on Grey's Anatomy, but still on Private Practice, of course. She stars on one Shonda Rhimes series after getting her start on the other.
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Mark and Addison in a photo from "Blink." A crossover event is totally in effect as Grey's Anatomy finally returns from its hiatus on January 14, 2010.
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Sometimes, the Grey's Anatomy cast is not enough. Someone from Private Practice needs to be brought in for expertise.
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Grey's Anatomy Quotes

You want to be a mess, be a mess. I don't care. I can take it.

Alex

It's one of those things that people say, you can't move on until you let go of the past. Letting go is the easy part, it's the moving on that's painful. So sometimes we fight it, try and keep things the same. Things can't stay the same though. At some point, you just have to let go. Move on. Because no matter how painful it is, it's the only way we grow.

Meredith