kohlrak: I didn't get to play TW2 'cause my computer can't handle it. As for body hair, if there was any i didn't notice it. You rarely see him outside of the same outfit he wears the whole game. Like, when i saw all the promotional material for TW3 then went and played TW1, i was disappointed. He looks and acts young, even really awkward in TW1. It's not a bad game, but it reminds me of Vampire the Masquerade: Redemption level acting, which makes more sense for a a much younger geralt than it did the lead character of that game. Geralt feels like he is growing up all over again, since his memory loss hit him hard. He feels like he has to feign confidence for everyone else's benefit, but ultimately lost and confused. He's a bit like an 18-20 year old male who's just trying to find his place in the world, with the caveat tht he already has one, but just forgot what it was. It seems to me that this is why people have a problem with this Henry Cavill: that's precisely what he looks like here. He changed alot, grew alot, throughout the games. I see this casting reflecting that potential as well.
EDIT: Now that you mention it, i find it strange that geralt has any facial hair at all, lore wise. His hair should not be growing. Aesthetic wise, sure, but then we're getting back to video game logic.
I know it still has its fans here, but I dare say almost everything about Witcher 1 feels a little awkward nowadays, when compared to Witcher 3. There were a handful of things about Witcher 2 which I liked better than in the third game, but that's a different topic. ( By the way, Witcher 2 has fairly modest hardware requirements, depending on how old your PC is. I remember I was able to run it at maxed out settings with a GTX 750 Ti. )
Here's a picture of his body hair in Witcher 1:
https://imgur.com/XXTjdfZ I've seen a few more such screenshots, so it might be official, but it's been years since I played the first game, so I don't remember for sure.
How does the hair thing work anyway? I know his body has been altered by alchemy/magic/whatever; that's why his hair and skin are pale, and it enhanced his sight and other senses. But if that somehow affects his hair growth, shouldn't he have lost
all of his hair? And if it only "bleached" his hair, shouldn't his eyebrows and chest hair ( in the first game ) be white too? I suspect there may be no explanation to any of this, and it's simply the influence of the artists/ art directors of each Witcher game, and their own aesthetic preferences.