Because you like Wendy Testaburger in South Park
Cady Heron is the new girl in town who's also new to the world of high school, period. See them in Mean Girls.
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
People think Karen Smith is a dumb blonde, but she disagrees and is proud she can predict the weather with her breasts. See them in Mean Girls.
A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.
A machete-wielding mass-murderer, Jason Voorhees is a terrifying blank slate. See them in Friday the 13th.
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
A stylish agent, Agent J would rather improvise than play by the rules. See them in Men in Black.
Roger is a pansexual alcoholic non-human who will happily lie, cheat and steal to get what he wants. See them in American Dad!.
When Kat starts to develop confidence, she realizes that there is nothing more powerful than a fat girl who doesn’t give a damn. See them in Euphoria.