Actor Liam Hemsworth will replace Henry Cavill as Geralt of Rivia in the fourth season of 'The Witcher'. "Henry Cavill has been an incredible Geralt, and I'm honoured that he's handing me the reins," Liam said. He added that he "may have some big boots to fill", but he's "truly excited". Earlier this week, Cavill confirmed his return as Superman.