Dennis Dunphy

Dennis Dunphy underwent the Power Broker's dangerous augmentation process to gain superhuman strength, stamina, and durability, becoming the wrestler D-Man and competing in the Unlimited Class Wrestling Federation before forging a close alliance with Steve Rogers as Captain America.

Few characters embody the scrappy, street-level heart of Marvel's Copper Age quite like Dennis Dunphy, who crashed onto the scene in Captain America #328 in 1987, brought to life by the legendary Mark Gruenwald and Paul Neary. Over nearly four decades of publication — stretching remarkably all the way to 2026 — Dunphy has carved out a niche in some of Marvel's most iconic titles, rubbing shoulders with the likes of Sam Wilson, Tony Stark, and the Falcon across the pages of Captain America, Avengers, and Captain America: Sam Wilson. With four key collector issues to his name and 61 catalogued appearances, he's no footnote — he's a persistent, genuinely beloved presence in the Marvel universe whose longevity speaks for itself. If you've been sleeping on Dennis Dunphy, it's high time to dig into those long boxes and discover what keeps this Copper Age original relevant across generations of storytelling.