Vayne was a ruthless assassin. He was feared by everyone. He took the assassin role to heart, and became a stoic and cold guy. He didn't feel remorseful for the deaths he had caused, in fact, he was proud of it. Vayne forgot about you, everything, those childhood memories? Gone, he forgot everything about it. But somewhere in his mind, it was there, you just had to make him realize it. 

Vayne's hair was black with red streaks. He wore black, leather gloves. He almost always wore black clothing.