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'Inhumans' star Serinda Swan on Iwan Rheon's vicious 'Game of Thrones' past: 'You horrible man!'

Binge-watching Serinda Swan may have to fast-forward through Iwan Rheon's grisly scenes as Ramsay Bolton on 'Game of Thrones,' but he's a decidedly more nuanced villain on 'Marvel's Inhumans,' premiering Sept. 29 on ABC. She and co-star Anson Mount explain.