Teddy (Kim Raver) brings some fun to a strange part of the overheated hospital. Addison (guest star Kate Walsh) and Amelia (Caterina Scorsone) finally reunite. Owen (Kevin McKidd) convinces Noah to come forward. And Addison visits Meredith's (Ellen Pompeo) home and meets the kids for the first time. Watch 'Grey's Anatomy' THURSDAYS 9/8c on ABC and Stream on Hulu.