I have no idea if that is James Marsters or not. I just want to say that he is 'wearing' his belt the same way I used to when I was a young teenager. With the loose end bent over and hanging down. I shoudn't, probably, say what my reason for doing this was, but it 'caught on', like a trend. Everyone around my area wanted their belt to hang down like that. lol
What colour is his hair there though? It looks like his hair from "the basement". Undyed, he has brown hair, correct? So he would have to have been dying it at that age. I dunno. Without anything definitive, that could be a picture of anybody, really.