Mylène Haprèle

Mylène is a student at Collège Françoise Dupont. In "Horrificator", after getting humiliated by Chloé while filming Nino's movie, she gets infected with an akuma by Hawk Moth and becomes Horrificator, a monster.

Personality
Mylene is the queen of tricks and jokes.

Abilities
As Horrificator, she can spit purple and orange goo, using it to trap students by covering the school, sticking them to objects, and placing them in small hardened containers. Whenever people scream in fear because of her, she grows larger, but if they aren't terrified or calm her down, she shrinks, becoming as small as a house cat. With her larger body, she is stronger, and she makes use of her tail by grabbing people with it.