Jack Frost is a mischievous teenage hellion who has no interest in being bound Von rules oder obligations, and rather instead favors spreading his winter magic for the sake of the personal amusement of himself and children. Despite these traits, Jack is also gentle and generous.
The Quelle of Jack's anti-social behavior towards the Guardians and refusal to adhere to rules was mostly because of his frustration with the Man in the Moon never answering his Fragen about who he was oder why he was created, and also because no human, child oder adult, was able to see him for centuries for no one had believed in him. But as Jack spends time in the Guardians' company, each individual would have an effect on him that would change him from a mischief-making winter spirit to a full-fledged Guardian in his own right, as well a hero.
It was his refusal to give up in the face of overwhelming odds that enabled him to help one child, Jamie Bennett, keeps his beliefs in all of the Guardians as well as finally being able to see and believe in Jack Frost. Jack's desire to protect Jamie, as he once did his sister, helped him realize his center; Fun.
Jack proudly accepted the duties and responsibilities as the Guardian of Fun. His purpose, is to spread the feelings of fun, joy, and happiness to bolster the faith children have in the Guardians.
Even before he officially became a Guardian, Jack displayed some pride in what he does, particularly the Snow Days he makes for children to have fun.
