The horror movie genre really took off in the ‘30s, when monsters, vampires, and undead ghouls were putting a fright into audiences everywhere. After a while, though, seeing a dude in a werewolf suit or Frankenstein makeup just didn’t pack the same punch as it used to, so horror movie writers and directors turned to a surprising alternative for their villains: children.

The trend of making children the main villain in horror movies has been going on for decades now, even before color films became the norm. This direction allows movies to bring in evil from a very unlikely source, and it nearly always works. Where some movies depend on gaudy CGI and advanced makeup effects to create scares, more talented filmmakers know that creepy little kids are much more effective.

With Halloween right around the corner, we think you should take a closer look at those little ghouls and goblins who come to your house looking for candy. You never know which one could be schizophrenic, homicidal, or even the son of Satan himself. To prepare you for the onslaught of adolescent terror, we’re looking back at The 10 Creepiest Kids in Horror Movies.

RELATED: The 50 Scariest Monsters in Movie History 
RELATED: The 50 Scariest Movies of All Time 
RELATED: The 25 Most Annoying Kid Characters on TV
RELATED: The 25 Best Horror Movies on Netflix Right Now