Rocksteady

Few villains in the Archie Comics universe are as instantly recognizable as Rocksteady, who crashed onto the page in 1988's Teenage Mutant Ninja Turtles Adventures #1, courtesy of creators Michael Dooney and David Wise. A product of the Copper Age boom that made the Turtles a cultural phenomenon, this bruiser has been a persistent thorn in the sides of Raphael, Leonardo, Donatello, and Michelangelo across nearly three decades of comics — and he's almost never far from his partner-in-chaos, Bebop. His appearances stretch all the way to the 30th Anniversary Special, a testament to just how deeply he's embedded in the TMNT legacy — if you're exploring the Archie run of everyone's favorite heroes in a half shell, Rocksteady is essential company.