Amber: The time of Red Knives
Julian is like a paladin: He rides a powerful horse, wears white armour, and sucks the fun out of a room.
His is a familiar tale: he couldn’t make any friends growing up, so he went to the woods behind his dad’s house/castle and made friends with the woodland creatures there. When he cries because he’s so lonely, they come to comfort him. He even plays fetch with his hellhounds.
If you want to shake his cool, ask him about the time he was beaten at his favorite game to Corwin, or about his forbidden love. That last one is kinda creepy.