Kate Walsh sets 'Grey’s Anatomy’ return for season 18
Kate Walsh — who made her "Grey’s Anatomy" debut as Dr. Addison Montgomery in the show’s Season 1 finale in 2005, and later was the star of spinoff "Private Practice" — will return to "Grey's" for a multi-episode arc in its upcoming 18th season. Representatives from ABC confirmed Walsh’s return to the medical drama, but did not give specifics about Addison’s storyline.