While most people wear silly or iconic costumes for Halloween, others put on terrifying costumes and scare the guts out of their friends. We’re talking about scary ghouls, demons, zombies, mummies, and a host of other bizarre creature-like things! Are you thinking about which Halloween costume you will wear this year? If so, you should check out our list. From the living dead to bizarre demons, these are the 25 Most Terrifying Halloween Costumes.