https://wccftech.com/play-as-henry-cavill-in-the-witcher-3/

So let's be honest, Henry Cavill is fantastic in the role of Geralt of Rivia. The man was born for the role, being a fan of the IP, the games, and then became somebody who hugely respects the source novels by Andrzej Sapkowski. The show starts slow but in the eight episodes comprising the first season, you can tell that it's going to be something special in the long run. Even if Henry Cavill hadn't been the ideal Geralt, mods were going to be made for The Witcher 3 and, indeed, mods were made.

The mod "Henry Cavill and Anya Chalotra" by a modder called Adnan was actually released back in August, so it was based just on trailers. What it does is changes the appearance of Geralt in the game to look just like Henry Cavill in the show and he looks great. In addition to modifying Geralt, the mod also brings in the stunning Anya Chalotra in her role of Yennifer.