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Jimmy looks exactly like Jack Frost, only, he has a look of kindness on his face.
Personality[]
Jimmy is kinder than Jack Frost. Because he respects the goblins (by considering buying them cushions to sit on and feeding them), the goblins respect him back and ignore most of Jack Frost's angry comments. Jimmy is more mature and enjoys drinking tea. He is more homely and respects everything and cares for the Ice Castle, such as wanting to turn the central heating of the palace on and painting it another colour. Jimmy doesn't like Jack misbehaving and stealing. He helped the girls and the fairies get the Gemini Ring back and ceased to exist once it was recovered. The girls had an obvious friendship with Jimmy.
Jimmy doesn't exist now, but he still "exists in Jack's heart" as hes still mentioned throughout the series.
Trivia[]
Technically he isn't Jack Frost's twin, but his clone.