High Quality Content by WIKIPEDIA articles! Duke is a fictional character from the G.I. Joe: A Real American Hero and G.I. Joe: Sigma 6 lines of military-themed toys. The character is featured in both the animated series and comic books. Channing Tatum portrays Duke in the 2009 live-action film, G.I. Joe: The Rise of Cobra, and will reprise his role in the upcoming 2013 sequel, G.I. Joe: Retaliation.