Because you like Ed Teach "Blackbird" in Our Flag Means Death
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.
Walter White's knowledge of chemistry allows him to cook astoundingly pure meth, leading to a rapid – albeit tumultuous – rise in the criminal drug world. See them in Breaking Bad.
Phil Coulson is a deadly field agent with the demeanor of a friendly dad. See them in Marvel Cinematic Universe.
Artemis Fowl understands the way of the world. If he wins, he's a prodigy. If he loses, then he's crazy. That is how history is written. See them in Artemis Fowl.
A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.
Meticulous Arthur is always prepared, but he may not be ready to be the point man in the criminal world of dream sharing. See them in Inception.
Don't mess with Mickey Milkovich unless you want to see the wrong side of one of his many guns. See them in Shameless.
Wearing couture pinstripe suits over his cut abs, banker Patrick has a way with the ladies. But his relationships never end well. See them in American Psycho.
Tony Stark's interests include cocktails, beautiful women, particle physics, and saving the world. See them in Marvel Cinematic Universe.
Winnie the Pooh is a chubby little cubby all stuffed with fluff. See them in Winnie the Pooh.
Even the smallest person can change the course of the world, if he's brave enough. See them in The Lord of the Rings.