Because you like Serena van der Woodsen in Gossip Girl
A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.
It's hard to tell if Dean Winchester cares more about saving the world or his 1967 Chevy Impala. See them in Supernatural.
For somebody who won't answer questions, the enigmatic C.C. sure asks a lot of them. See them in Code Geass.
An assassin with supernatural gifts, Corvo Attano is the last guy you should frame for murder. See them in Dishonored.
Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.
The only constant in Night Vale is Cecil's hypnotic voice. See them in Welcome to Night Vale.
The Sohma family is just plain cursed, and Yuki Sohma has to learn to live with it – or so he thinks. See them in Fruits Basket.
Tarzan is walking the line between human and animal. Good thing he has excellent balance. See them in Tarzan.
Roger Kint is a nervous, weak, ham-handed criminal. We think. See them in The Usual Suspects.
Courteous, dangerous, and powerful, Kaname Kuran controls an entire court of vampires. Very, very pretty vampires. See them in Vampire Knight.
Ichigo Kurasaki is a short-tempered, strong-willed teen who is deeply protective of those he loves. See them in Bleach.