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Maxie Fields, portrayed by Walter Matthau, is a charismatic and cunning hustler in the 1958 musical drama "King Creole." With his slick demeanor and sharp wit, Maxie becomes a mentor to Danny Fisher (Elvis Presley), a young singer trying to navigate the treacherous world of show business. Matthau's performance brings depth and humor to the role, showcasing his versatility as an actor.