Because you like Jo Wilson in Grey's Anatomy

This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.

Nadia Vulvokov is a no-nonsense broad with a dark sense of humor and a flippant attitude. See them in Russian Doll.

A 100-plus-year-old who looks like a dreamy teenager, Edward Cullen warns girls to avoid him, which makes them want him even more. See them in Twilight.

The only constant in Night Vale is Cecil's hypnotic voice. See them in Welcome to Night Vale.

Egon Spengler prefers collecting spores, molds, and fungus to interacting with people. See them in Ghostbusters.

Spyro the Dragon loves getting into trouble around the Dragon Realms. See them in Spyro the Dragon.

Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.

As the White House Press Secretary, C. J. Cregg is a master of verbal karate and the best damn basketball player in Ohio Valley history. See them in The West Wing.

Chaos is what killed the dinosaurs, and there's nothing Jason "J.D." Dean loves more than chaos. See them in Heathers.

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

Whether it's randomly bursting into song or writing Nancy Drew fan-fiction, Jess proudly marches to the beat of her own drum. See them in New Girl.