So, the premise of the show would definitely change. Would the cast be altered as well? So far, it's unclear whether Flanagan plans to preserve the Hill House cast and place them in new roles, a la American Horror Story , or start with a new canvas entirely. Many of the actors in Hill House are regulars in Flanagan's horror movie rotation . For example, Henry Thomas, Elizabeth Reaser, and Lulu Wilson, who are all in The Haunting of Hill House, star in Flanagan's 2016 movie Ouija: Origin of Evil. Also, Katie Siegel, who plays the adult version of Theo in Hill House, is Flanagan's wife and creative partner. Since Flanagan has such extensive history with the cast, perhaps they will feature somehow in future seasons.