Succession star Kieran Culkin has been announced as host of an upcoming episode of Saturday Night Live, with Ed Sheeran appearing as musical guest.The actor, who plays Roman Roy in the HBO series, which is currently in its third season, will make his SNL hosting debut on November 6, the legendary comedy sketch show revealed during last night’s (October 23) episode.While Culkin’s forthcoming turn on SNL will be his first time hosting, it’s not the first time he’s appeared on the show.