As a witcher fan, I saw they deviated so far from the books, and even further after watching season 3, that it feels strange...the reason why Henry Cavhill left...You can easily replace him with someone else since they do not even concentrate on telling Geralt's story but they have emphasized on other characters i.e Ciri, yennifer....and yet the series is called the witcher yet hisbrole in the show is so minute