Nearly four months after getting hitched, former Grey's Anatomy star Kate Walsh, 40, and her husband, 20th Century Fox production executive Alex Young, 35, enjoy a laid back afternoon while walking with their dog in the Hollywood Hills.

Kate Walsh and Alex Young: Very casual and cute together.

Kate's role as Dr. Addison Montgomery-Shepherd (estranged wife of Patrick Dempsey's Dr. Derek Shepherd) was only supposed to be for a few episodes of Grey's Anatomy, but overwhelming response from fans kept her going for two entire seasons until she left to pursue her very own Private Practice.

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