Frankenstein. Hannibal Lecter. Jason Voorhees. The Boogeyman. In a game of word association, these would be the usual suspects associated with the term “monster.” But in the world of professional wrestling, the characterization takes on the different form. It’s an extreme heel, a bad guy with a larger-than-life build, bizarre psyche, and no real ulterior motive. Just cruel intentions of decimating all those who step into the squared circle.

They’re the ones responsible for cutting sinister, razor sharp promos and making wrestling’s biggest superheroes look weak by performing heinous acts for mere shock value. They’re frightening grapplers who fear no men and feel no pain—the last guys you ever want to be stuck in a room with, let alone steel cage. These are The Biggest Monsters in Pro Wrestling.