Ellen Pompeo is excited as viewers are to welcome back Kate Walsh to The star of ABC's medical drama sang Walsh's praises on the Emmys red carpet on Sunday, calling her former co-star «amazing.» Walsh will return for multiple episodes in season 18, reprising her fan-favorite character, Addison Montgomery, for the first time in eight years after wrapping spinoff, «Kate's amazing,» Pompeo said of Walsh. «That's one of my favorite things about the show right now is having original cast members come