Because you like Alison Scott in Knocked Up

Miss Peregrine exists to protect her wards, whether they like it or not. See them in Miss Peregrine's Home for Peculiar Children .

A librarian and aspiring Egyptologist, Evie O'Connell would rather have her own adventures than just read about them. See them in The Mummy.

Nancy Wheeler is popular but independent, sheltered but gutsy. See them in Stranger Things.

A girl who grew up on stories, Meggie Folchart is as loyal and intrepid as one of her fictional heroines. See them in Inkheart.

This is not a democracy. According to Torrance Shipman, it's a "cheerocracy." See them in Bring It On.

Raven Reyes may be a deliquent, but she's also the youngest zero-gravity mechanic who fixed a 130-year old escape pod to make it through the descent to Earth. See them in The 100.

Growing up is hard for Carl Grimes. Growing up in a zombie apocalypse is even harder. See them in The Walking Dead.

Charming and enigmatic, Amy Dunne takes her love for puzzles to a cunning new level. See them in Gone Girl.

A premier member of the leather cat-suit club, Selene can chill you with a stony look, or ice you with her ninja moves. See them in Underworld.

Told her son will one day save the world, Sarah Connor dedicates her life to training him to do just that. See them in The Terminator.

Duck, girl, and legend: Ahiru's identities confuse even herself at times, and she often wonders which of them is truly her. See them in Princess Tutu.

Bo Dennis once dreamed of being prom queen, but then she found out that she's part of some ageless secret race that feeds on humans. See them in Lost Girl.