Donquixote Doflamingo

"Pirates are evil? The Marines are righteous? These terms have always changed throughout the course of history! Kids who have never seen peace and kids who have never seen war have different values! Those who stand at the top determine what's wrong and what's right! This very place is neutral ground! Justice will prevail, you say? But of course it will! Whoever wins this war becomes justice!"

- Doflamingo at Marineford

Donquixote Doflamingo was the main antagonist of the Dressrosa arc/Pirate Alliance saga of the One Piece manga/anime. He is the captain of the Donquixote Pirates and was the king of Dressrosa before his defeat by Luffy and Law. Formerly the most influential underworld broker, Doflamingo's defeat and capture sent shockwaves throughout the New World, enraging his affiliates, including one of the Four Emperors, Kaido.

Quotes
"Who's going to be happy seeing you safe and sound after running around like a coward? If you can't cut down your foe, take a blow and bleed for yourself! Every human being... even the most pious saint, harbors a latent streak of barbarity that surfaces when he sees blood! Blood and death! This is entertainment!"

"The fact that you miserable brats thought, for even an instant, that you could actually beat me is the highest disgrace! Understand this. I am of the noblest blood in the world... a Celestial Dragon! I possessed the rarest of powers. Nobility by birth! However! One day my father decided that our family of four should give up the greatest power there is and come live in this cesspool of a world! Live like a human, indeed. What a stupid, stupid man! And what do you think happened? I witnessed both heaven and hell by the age of ten. So I killed my father, the root of my suffering... and took his head to Marijoa! But the Celestial Dragons in heaven would not take back anyone from the line of traitors. There was no escape from this hell. And that's when I swore that I would destroy everything they hold dear about the world they control! The lives you've led cannot compare to what I've been through! I don't have time to waste with you miserable brats!"