@Nymeria Ehh, I won't stand corrected. It may well be that you have no rule barring characters of colour per se. However, scrutinizing them such that they're nigh impossible to get approved (on a game with a very laborious application process at that) amounts to the same thing.
I doubt lot of people are super keen to play PCs of colour on a game where they are strongly discouraged by a headwiz who's notorious for saying racist things on social media.
@hobos I getcha. I wondered about it myself -- not only is GoT a typical white fantasy setting, the notion of family resemblance, and specifically in terms of hair-colour, is a major plot point. More than once.
I didn't do or say anything about it. Game of Bones had PCs of colour. I even actively encouraged them. But players, all on their own, kept their Lannisters blonde, their Baratheons black-haired, etc. "Not Overtly Forbidden" does not mean "Inevitable".
I did not have problems with PCs of colour having a reason to be in the setting. Because, one, every character needs a reason to be in the specific setting of a game, and players all come up with one. I simply didn't require PoC to have a good and compelling one while white PCs were there for the beer, all characters were allowed to be there for stupid reasons. It's realistic. Also, the Narrow Sea separating Westeros from Essos is narrow. People have been sailing back and forth for somewhere between two and six thousand years. It's just not much of a barrier in the books, so it seems a stretch to be all oh nooooes how could you possibly be there?! on a MU.
@Misadventure Pointless info-dump-esque thing. Ned Stark doesn't understand genetics and it's quite likely that George R. R. Martin doesn't either, but Jon actually works out fine -- some primates on Planetos, Valyrian humans notably, have the equivalent of a "dominant white" mutation. In the real world humans don't have this, but a lot of other creatures do. Horses have lots of different ones. So Rhaegar had one copy of the Valyrian white-hair gene and thus the phenotype. Lyanna Stark didn't have the gene, and Jon happened not to get it from Rhaegar, so Jon's brown or black haired depending on your show/book preferences. Interesting, in real world animals having two copies of a dominant white gene often results in neurological dysfunction. Which would explain why Targaryans are often batshit. Dominant white mutations are also often what coat-colour-genetics people call 'leaky', meaning that whatever colour the creature would be without the white gene covering it shows through -- you want a snowy white chicken, you breed recessive white because dominant white is likely to give you a brassy white or a ticked white. If Valyrian white acts that way with blonde, it would explain how generations of Lannisters could 'carry' it and be 'golden' rather than white blonde.
Probably coincidental, but amusing thoughts to me.