Because you like The Master in Doctor Who

John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.

Willow Rosenberg may be a witch who can defeat the forces of evil, but she still gets emotional over kittens on the Internet. See them in Buffy the Vampire Slayer.

An ambitious man of science, Norman Osborn has become green with envy over Spider-Man's powers. See them in Marvel Cinematic Universe.

People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.

In the simplest terms, in the most convenient definitions, people consider Brian a nerd. But he's more than that. See them in The Breakfast Club.

A crooked cop, Harvey Bullock is the product of a not-so-just criminal justice system. See them in Gotham.

A deadbeat dad and small-time con-artist, Frank Gallagher gives nothing and yet expects everything. See them in Shameless.

Effortlessly sexy, calm, and collected, Eric Northman is equally at home ripping off heads and flirting with waitresses. See them in True Blood.

Jasper Jordan is trying his best to make it through the night. See them in The 100.

Penelope Garcia is the smartest ex-con turned FBI tech, but her fashion never fails to raise eyebrows. See them in Criminal Minds.

In constant agony, Ava Starr will do anything to give up the superpowers that are slowly killing her. See them in Marvel Cinematic Universe.

We're all puppets. Dr. Manhattan is just a puppet who can see the strings. See them in Watchmen.