After discovering that his family carried the werewolf gene. Jamie was scared to become a werewolf himself and his fears came true when he accidentally killed someone and triggered the curse. His older brother offered his support to him, helping him through his first transformation and preparation for his new life.
Jamie had a very aggressive, arrogant and selfish personality. Jamie behaved like this because of his werewolf gene. When his brother came back to town, he learned how to control his anger and tone down his behavior. But after discovering that his family carried the werewolf gene, Jamie was scared to become a werewolf himself.