Cartoon Villain Shape

The villains in cartoons, live action, and animated movies share many of the same characteristics. They often have horns, pointed ears, protruding chins, sharp eyes, pointed wings, V-shaped eyebrows, and devilish goatees.
This is because the facial and body shapes of villains are often drawn or designed to resemble triangles with pointed tips. Filmmakers and animators use triangles for villains, because our faces look triangular when we are angry. People also notice triangular and angry faces faster, because they appear threatening.

For movie directors, threatening and angry means evil. This is something backed by science. In one study, volunteers noticed the angry expressions first when shown the faces of smiling, angry, and neutral people. They also noticed the downward-facing triangles first when shown pictures of four triangles pointing up, down, left, and right.