Cardiac

Elias Wirtham is a physician who, after losing his brother to a corporation that withheld a life-saving drug for profit, transformed himself into the vigilante Cardiac — using beta-particle energy technology to punish those whose legal but immoral actions harm innocent people.

Bursting onto the scene in The Amazing Spider-Man #350 in 1991, Cardiac is a Copper/Modern Age Marvel creation from the sharp collaborative minds of David Michelinie and Erik Larsen. Over more than three decades, this intriguing figure has kept remarkable company — crossing paths with Spider-Man, Peter Parker, Felicia Hardy's Black Cat, and the enigmatic Elias Wirtham across a surprisingly eclectic range of titles, from Felicia Hardy: The Black Cat to Edge of Spider-Verse. With a catalog footprint that stretches all the way to 2023, Cardiac is one of those hidden gems of the Marvel universe who rewards the curious reader willing to dig a little deeper.