Because you like Gilderoy Lockhart in Harry Potter Series

Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.

Stanley Barber is a loveable goofball with impeccable (if eccentric) fashion sense, unique music taste, and a wealth of strange but useful knowledge. See them in I Am Not Okay With This.

Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.

Just like half of L.A., Mia Dolan is working a dead end job until she hits the big screens. See them in La La Land.

It's a mad, mad world, but Alice has a surprisingly level head as goes her own way down the rabbit hole. See them in Alice in Wonderland.

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.

Jim Hopper is a weary and beaten down police officer who numbs his pain through beer, pills, and cigarettes. See them in Stranger Things.

Faith has a chip on her shoulder and a stake in her hand to slay vampires in her town. See them in Buffy the Vampire Slayer.

A homeless orphan with unusual red hair, Anne knows the odds are against her. But she's starting to find her inner power. See them in Anne With an E.

Anakin Skywalker is said to be the chosen one, who will destroy the evil Sith. But he struggles with Jedi ideals as he grows in power. See them in Star Wars Series.

This android may not have emotions, but Lt. Commander Data's curiosity about humanity is endless. See them in Star Trek: The Next Generation.

Santana Lopez is a cutthroat cheerleader who's not afraid to speak, or sing, her mind. See them in Glee.