Because you like Bob Pinciotti in That '70s Show

Damon Salvatore used to miss being human. Now he can't think of anything more miserable. See them in The Vampire Diaries.

He's an eccentric pirate making it up as he goes along. He's Jack Sparrow, savvy? See them in Pirates of the Caribbean: the Curse of the Black Pearl.

A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.

Hell hath no fury like an evil fairy scorned. See them in Maleficent.