Because you like Montgomery Scott in Star Trek

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.

Although Jareth seems like he's just a harmless romantic, his powers make him a formidable foe. See them in Labyrinth.

Self proclaimed, Fat Amy, likes horizontal running and mermaid dancing. Important skills, one could argue. See them in Pitch Perfect.

Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.

Lorelai Gilmore loves coffee, talking fast, flirting, movie marathons, and her daughter. See them in Gilmore Girls.

Will Herondale is an emotionally distant bad boy with a secret. See them in Clockwork Angel .

An obsessive schoolgirl, Yuno has two sides to her personality, and both are equally unnerving. See them in The Future Diary.

He's a troubled insomniac in search of a moment to rest and a meaning to his existence. See them in Fight Club.

A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.

You don't teach a class called "How To Get Away With Murder" without knowing a thing or two about getting away with things. See them in How to Get Away with Murder.

The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.