10 – Trebol
Trebol is one of the top three officers of the Donquixote Pirates. He is also personally responsible for fostering Donquixote Doflamingo’s cruelty from a young age, making him the indirect cause of an inhumanly large amount of evil and suffering brought about by Doflamingo’s wrath. Because of this, he can be considered a major antagonist in the Dressrosa Arc with a greater influence and impact than what is first suggested in his initial appearances.
9 – Spandam
Spandam is a cowardly Government Agent who would do anything for his own being.
Wapol proved to be a spoiled and corrupt king, who held not even the slightest regard for his people. As such, all the citizens both feared and hated him. He was also a coward, fleeing his kingdom without even fighting back when the Blackbeard Pirates attacked, showing disloyalty.
He ruled to satisfy his selfish desires and he brutally beat anyone who disobeyed him. He is callous towards his people and never appears to care for their safety. Wapol loves to dominate over others with his family’s power and wealth, and truly believes that no should dare question his authority.
7 – Caesar Clown
Caesar Clown is one of the most sadistic characters in One Piece as he enjoys seeing people suffer. He pretty much cares for himself than anyone else and has shown to be very deceitful and manipulative such as when he rescued a crew of pirates and helped them but instead used them for his cruel experiments. Caesar also has no remorse for his actions and will sacrifice children for his experiments with no care for them. Caesar is very prideful as being one of the best minds in science and sees himself as a better scientist than Vegapunk, his rival, and has shown to be incredibly jealous of the latter.
6 – Arlong
Arlong considers humans to be inferior beings, and is very cruel to them. He thinks nothing of killing a town full of humans, although he seems to prefer controlling people with money and deals (like Nami and Nezumi).
5 – Hody Jones
Hody Jones is a fishman who grew up feeding on hatred of humans, inspired by Arlong. However, unlike him, Hody never received any harm from humans. He hates them and wants to eradicate their race for no other reason than simple racism. Also, unlike Arlong, Hody has no qualms about harming a fellow fishman, mainly the ones who are friendly to humans.
His hatred for humans is so fierce it brought him to murder his own Mermaid Queen Otohime and accuse a human, to make all Fishman Island hate them.
4 – Stelly
Like most Nobles shown from the Goa Kingdom, he is an arrogant person who does not care for anyone that is of lesser status than himself, referring to them as trash. This extends to referring to Sabo as “stupid” and “trash” due to what he heard from their parents, all casually, disregarding any manners or respect.
As an adult, Stelly still acts rudely to people of lower status and acts spoiled, as he complained about his lavish living quarters on Loguetown.
3 – Marshall D. Teach
Blackbeard is the archenemy of Monkey D. Luffy and is considered the evil counterpart of Whitebeard. He is highly amoral. He believes that there is no inherent “good” nor “evil” in the world, jeeringly mocking anyone who expresses such belief. He showed his ruthlessness when he killed Thatch, and with his crew’s help finished off his former captain, Whitebeard.
2 – Akainu
Akainu is the current Fleet Admiral. He is cruel, heartless and believes in the Marines motto of “Absolute Justice”, which is to punish criminals at any cost. He will kill anyone that he thinks are evil or are an obstacle of justice. He will also not hesitate to kill his own comrades who run away from the battle. He will kill them no matter how they beg for mercy. He is one of Monkey D. Luffy’s archenemies after killing his brother Portgas D. Ace.
1 – Saint Charloss
Saint Charloss is a World Noble. He is a cruel man who does not care for the lives of others and like most World Nobles he believes that he is superior to everyone he encounters. He appeared in the Saboady Archipelago Arc.
Thanks Luffy for punching the hell out of him.