Duke is a fictional character from the G.I. Joe: A Real American Hero toyline, comic books, and animated series. He is the G.I. Joe Team's First Sergeant, and debuted in 1983. The character is also featured in both the G.I. Joe: Sigma 6 animated series and comic books. Channing Tatum portrays Duke in the 2009 live-action film, G.I. Joe: The Rise of Cobra, and the 2013 sequel G.I. Joe: Retaliation.