Because you like Dorothy Zbornak in The Golden Girls

L is enigmatic, child-like, and one of the smartest people in the world. See them in Death Note.

His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.

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 daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.

When the Sorting Hat touched Draco Malfoy's head, it placed him in Slytherin, a house that has turned out more dark wizards than any other. See them in Harry Potter Series.