Duke (Conrad S. Hauser), G.I Joe; born in St. Louis, Missouri. He is a skilled polyglot, being fluent in English, French and German, as well as several Southeast Asian languages. Duke is field commander & second-in-command of the Joe team after Hawk. Channing Tatum portrays Duke in the live-action film, G.I. Joe: The Rise of Cobra, & sequel G.I. Joe: Retaliation.