0 of 5

Halloween is the time for ghosts, ghouls and goblins, but fight fans know there is a breed of fighter in boxing that can create just as much blood-curdling terror. And these guys do it year round. They are the angry and aggressive punchers—the fighters who go for the knockout above all else.

These guys are terrifying.

They come in all forms. They can be stalkers, pressure fighters, boxer-punchers or just plain brawlers. But unlike fictional horror movie characters like Jason Voorhees and Michael Myers, these dudes are real.

Here are the absolute scariest of them, ranked in order of who provides the greatest spills and thrills.