Watch: Michelle Yeoh on Liam Hemsworth Joining The Witcher: Blood OriginLiam Hemsworth is reflecting on his White Wolf training. Months after the actor debuted his rugged transformation as Geralt of Rivia-a role previously held by Henry Cavill-in The Witcher's fourth season, he revealed how he navigated fans' reaction to the sudden recasting. "There was quite a bit of noise and I had to put that aside," Liam, 35, told Entertainment Weekly in an interview published on Sept. 25. "It started to become a distraction.