Ever sinceAvengers: Endgame, the MCU has introduced more and more characters from the comicsmaybe too many.

While some have been instantly identifiable, others have been completely unrecognizable, even to some comic readers.

One character introduced inBrave New Worldsadly fell into the latter category before the film unceremoniously killed him off.

William Mark McCullough as Dennis Dunphy in Captain America: Brave New World.

Not even his status as an informal Avenger in the comics could save him.

He even had a heart attack from overexertion while fighting Rogers.

A Guy Named ‘Dennis’ Was An Avenger?

Dennis Dunphy, aka D-Man having a heart attack while fighting Captain America.

It’s like they just gave out Avengers cards to anyone who asked.

However, one of them remained an underdog, albeit also a running joke, for decades longer.

InCaptain America#328, he donned the D-Man identity and eventually became Rogers' newest partner.

D-Man being enlisted as an Avenger by Steve Rogers.

Sterns suffered the same fate,his enlarged brain looking nothing like the comics.

Okay, no, probably as Demolition Man.

Captain America: Brave New Worldis now playing in theaters.

D-Man saving Captain America.

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