The Netflix TV series based on the world of The Witcher is due out this year, starring Superman actor Henry Cavill as Geralt of Rivia. Cavill was always the first choice for the role, and isn’t just a fan of the character, he’s also played the games – The Witcher 3: Wild Hunt, in particular, he says he’s played several times.
However, not all of the stars of The Witcher TV show are such obsessively geeky fans of the property as Henry Cavill obviously is. Freya Allan, who plays Cirilla “Ciri” Riannon on the show, seemingly hasn’t played the games – and her only preparation for the character is through the first book, Blood of Elves, by Andrzej Sapkowski.
This was not because she didn’t want to, but was a deliberate and conscious decision on Allan’s part. Speaking with Comicbook.com, Allan says that she “didn’t want to over prepare” for the role, because she already felt there “was such a parallel” between her and Ciri – mostly because of their age.
Original source: https://www.pcgamesn.com/the-witcher-3-wild-hunt/netflix-ciri-games