Maggie Smith, Michelle Dockery, Hugh Bonneville, and a handful of others are set to reprise their roles as members of the Crawley family, but not every recurring character is going to make their movie debut, including Lily James. The Mamma Mia! Here We Go Again actress confirmed to People that she will not appear in the film. "My character Rose moved off to New York, so it would be far-fetched to bring her back," she explained. "I would have loved to have come back for a scene, but for a movie it can't be like a Christmas special and it needs to be a focused storyline. There was no space for Rose."