Caesar Clown

Caesar Clown, who was referred to as "Master" by his subordinates, is a demented scientist, a former colleague of Vegapunk, the main antagonist of the Punk Hazard Arc, and the first main antagonist the Straw Hats face in the New World. He is the leading expert on chemical weapons of mass destruction and has a bounty of Beli300,000,000 on his head. During the Dressrosa Arc, Donquixote Doflamingo declared Caesar to be his direct subordinate, meaning Caesar is a de facto member of the Donquixote Pirates, and thus protected from the law. Upon Doflamingo's defeat and arrest, this protection is lost, and Caesar's criminal status is once again operational in full. After a period as a hostage of the Straw Hat-Heart Pirate Alliance, he is currently in the custody of Big Mom, after Capone Bege was sent to retrieve and escort both him and Sanji to Whole Cake Island.

He was later liberated by the Fire Tank Pirates and is taking part in a rebellion against Big Mom. Caesar has a very gaseous look due to his Devil Fruit ability. He has very long, spiky, dark purple hair, brown eyes (yellowish in the anime), and two curly horns growing from the back of his head. He is rather tall (shown to be about the same height as Brook when standing next to him with his gas powers deactivated), and wears purple lipstick and dark makeup on his eyes. He has a small flat nose and long thin eyebrows. His arms are very thin in comparison with to rest of his body. Caesar wears a big light blue colored coat with "GAS" printed in pink on each side (in his first appearances this was not present). Under his coat, he wears a pair of diagonally striped yellow overalls which are striped cross with orange lines. The overall is cut off right under his knees, exposing his hairy legs. He also wears dark purple gloves with the initials "CC" in white on them. Due to his constant gaseous form, he seems to not use shoes, remaining barefoot, though only when his powers were disabled, his feet solidified with the rest of his body along with a simple pair of shoes.