Because you like Janis Ian in Mean Girls

Kim Kelly is a high school bully who's normally in a bad mood. But there's a softer side to her. See them in Freaks and Geeks.

Donna Carmichael is a free-spirited single mom and gracefully aging hippie. See them in Mamma Mia!.

A short-tempered guy, Bowser is determined to wreak havoc on the Mushroom Kingdom. See them in Super Mario Bros..

Sideshow Bob is a bitter ex-performer who was forced to do inhumane stunts for slapstick comedy. Now he's exacting revenge on his former boss, a clown. See them in The Simpsons.

A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.

Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.

Assistant to the demanding editor-in-chief, Emily Charlton comes across as cold and insensitive. But who can blame her? See them in The Devil Wears Prada.

Chaos is what killed the dinosaurs, and there's nothing Jason "J.D." Dean loves more than chaos. See them in Heathers.

Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.

Surly and sarcastic, Manny travels alone and prefers it that way. See them in Ice Age.

A free-spirited girl, Kim doesn't judge by appearances. See them in Edward Scissorhands.

Joyce Byers isn't crazy. She's just speaking to her missing son across dimensions using Christmas lights. See them in Stranger Things.