Erika Leigh Henningsen (born August 13, 1992) is an American actress and singer. She is best-known for her work on Broadway and for originating the role of Cady Heron in the 2018 Tony-nominated musical, Mean Girls, for which she received an Outer Critics Circle Award nomination.
In order to power the city, monsters have to scare children so that they scream. However, the children are toxic to the monsters, and after a child gets through, two monsters realize things may not be what they think.