Knight Solaire of Astora
I thought this might be what he looks like without his helmet on. Solaire is one of the genuinely good guys you meet in the game, but like all characters he is flawed. He searches for his "sun", which I assume is his search for deeper meaning in life (or afterlife). Towards the end of the game, his constitution and positive attitude appears to crack as he does not find what he's looking for. He's cool though I love this dude
Either way Solaire is commonly referred to as Brolaire because he promotes co-operation between players and you can summon him for aid against many bosses.