Because you like Xander Harris in Buffy the Vampire Slayer

Driven by obsession and anxiety, Monk bravely overcomes, or at least battles, his fears to help the world. See them in Monk.

Small in stature, Clara Oswald has a big appetite for adventure. See them in Doctor Who.

Ferociously independent and wickedly smart, Fiona Goode is a Supreme Witch who truly reigns supreme. See them in American Horror Story.

Be careful around Marie Laveau. There's no one more vengeful than a double-crossed voodoo queen. See them in American Horror Story.

Sansa Stark is a fan of all things pretty. Unfortunately, her life is about to get extremely ugly. See them in Game of Thrones.

Jasmine dreams of something more than palace life, and she's not afraid to go get it. See them in Aladdin.

Mother Gothel is a great mother as long as you never, ever, break the rules. See them in Tangled.

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.

Marv is a brutish but principled thug who'd be right at home on an ancient battlefield. See them in Sin City.

Murph is inquisitive, compassionate, and stubborn, with a passion for science she shares with her dad. See them in Interstellar.

Danny Zuko's car is auto-matic. Its system-matic. Its hyyyyydro-matic. Why, its greased lightning! See them in Grease.

Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.