Well, yeah. Dance and Rigg had some of the best scenes together (I also loved the Varys/Littlefinger talks). But it's just so jarring to watch that it distracts me to the point of complaint. But in fairness to the show, the general casting has been remarkable for what is really just (at the end of the day) a silly show about dragons and killing people. Dance, Rigg, Bean, Glen, Pryce, Headey, Dinklage, etc have been spot on perfect. Margeary is one of the few casting choices that just didn't work (IMHO - others obviously like her).