Duke is a member of G.I. Joe, often serving as the team leader whenever Hawk is somewhere else. With his blond hair, blue eyes, and cleft chin, he really sports that whole "real American Hero" thing much like a certain someone else.
DDP G.I. Joe vs. the Transformers 2
In a far future, where Decepticons had turned the world into something that looks a scene from The Terminator, a one-armed, no-legged, wheelchair-bound Duke who's missing a hunk of his face led the Dreadnoks as part of the human resistance.
Dreamwave Transformers/G.I. Joe
Duke was the field commander for the G.I. Joe team in 1939 as Cobra marched across Europe. During Duke's initial meeting with raw Joe recruits, Snake-Eyes realized that they were being observed. Duke took a shot at the spy, Laserbeak, but the Decepticon fired an extremely precise laser beam that disarmed Duke, wounding his hand in the process. Shortly thereafter, Duke led a team to the Fera Islands, where Cobra was located. His team immediately came under heavy fire. The team took cover and encountered the dormant Autobots. The Autobots revived, and after a brief confrontation, they convinced Duke and his team of their benign intentions. The united Autobot / Joe forces started to make their stand against Cobra and the Decepticons. When Optimus Prime began to doubt the Autobots' place in the conflict, Duke showed him the horrors of a Cobra-dominated world in the form of slavery and death, convincing him to stay the course. As the war reached a climax, Optimus directed Snake-Eyes to smash the matrix that Cobra used to keep the Decepticons in check, rendering all of the Transformers inert. As the Joes contemplated this sacrifice, Duke mused that "there's a fine line between being a hero and being a memory."
- A group shot drawn by Hidetsugu Yoshioka as cover art for Pioneer's Transformers 2010 laserdisk set mistakenly features Duke as a flag-waving incidental character in the crowd rather than Flint, a G.I. Joe who did appear in the series.