Jack was the prince of gilboa, being the future king taking over his father position, But soon while growing up realizing his father was more distant from him, leaving him mostly alone half of his life, so jack while growing up had a tough guy exterior, being more serious and stern with other people.

Jack was also the leader of the royal guard's, going into war with them a few times leading them to victory all the time, he was well respected by all of his guard's and by other royal's of the world, you one of the only mansion maid's, had watched prince jack train with the guard's, shouting when to start shooting target's or when to switch.