Duke is a fictional character from G.I. Joe, a line of military-themed toy. The character is featured in two series, G.I. Joe: A Real American Hero and G.I. Joe: Sigma 6, appearing in both the animated series and comic books.
He is portrayed by actor Channing Tatum in the 2009 live-action film, G.I. Joe: The Rise of Cobra.
Duke is the code name of First Sergeant Conrad S. Hauser. He is field commander and second-in-command of the G.I. Joe team after Hawk. He hails from St. Louis, Missouri and is fluent in French and German, as well as several Southeast Asian languages. He was at the top of his class at Fort Benning, has undergone Special Forces training, and worked with South Vietnamese Tribesmen. He was also an instructor in four different Special Forces schools. Despite his accomplishments, he has repeatedly turned down any officer commissions offered to him. He believes a commander's place is with his troops, not behind the battle lines.
As of May 2009, Duke has had 32 different 3 3/4" figures and at least 7 different 12" figures.
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Official Site: Hasbro
Links: Wikipedia Joepedia Yo Joe