Eustass Kid

Kid is a tall, muscular man with light skin and bright red hair, resembling flames. His nose has a particular shape, being quite pointed and having little protrusions on both sides. He has dark reddish, purple-colored lips and fingernails, red/orange eyes and no eyebrows.

He dresses in an extravagant attire consisting of black and yellow lizard-print pants with a red fringe, motorcycle boots, and a blue sash under a green belt fastened by a large circular buckle with a four-leaf clover-like pattern in the middle. He also has a slim bandolier, also with minuscule bolts that go diagonally over his right shoulder then ties to his waist, where he keeps a dagger with a Japanese-style hilt and what appears to be a flintlock gun. He also has gold bangles around both wrists.

He wears a pair of studded, square shaped goggles on his forehead, and a large fur captain's coat over his bare muscular torso. The dark brown coat is adorned with spikes on its shoulders lined in maroon. The collar of the coat is extremely flared and wide. He typically wears this coat with his right arm in its sleeve and his left arm under the coat itself.[1]

In SBS Volume 64, Oda drew the Supernovas as children. Kid is shown with spikier and more spread-out hair, similar to a lion's mane. He also wore larger and rounder goggles and did not have dark lips. He was depicted tinkering with a toy robot with a wrench. His blue sleeveless shirt has a sewn patch, like his yellow striped pants, and has a patch.[15]

After the timeskip, he is shown with slightly longer hair that appears to be pushed back. He also has a large scar that drags from the left side of his forehead, goes down his neck and another smaller one that goes through his left eye. There are two parallel scars on his lower right arm also. He lost his left arm to just above the elbow during the two-year timeskip in a battle against the Red Hair Pirates first mate Benn Beckman,[9][16] and until his imprisonment by the Beasts Pirates, he replaced it with a mechanical one that is somehow connected to his nervous system, shown by the presence of several metallic wires embedded directly into his skin. The mechanical arm was damaged in his fight against Kaidou, and later stripped from him to disarm him and put him at further disadvantage if he rebelled against his captor. His attire consists of his trademark spotted pants, a black opened vest, held down by a belted war kilt. He also has a long dark red coat, worn over his shoulders. He appears to have become more muscular and also has scars on his right forearm, left pectoral, and on the left side of his abdomen. He no longer wears any impractical jewelry.[6]

During the raid on Onigashima, he assembled a new mechanical arm.[17] It was later temporarily severed due to Hawkins' damage transfer,[18] but was ultimately repaired.[19] Kid comes off as a rude, vicious and bloodthirsty pirate, notorious for causing huge amounts of civilian casualties. Whenever feeling like he is being mocked or insulted, even though a glance, he is quick to resort to violence.[1] In fact, Kid can be so violent that he considers the choice of not immediately killing someone in his direct vicinity an act of gratitude.[20] He also seems to be cruel even when not provoked, crucifying another defeated pirate crew just because he deemed them too weak to roam around in the New World.[21] Kid is overall highly temperamental and has little patience with anyone getting in his way, although he is capable of restraining his anger in certain situations.[22]Kid can also be very petty, having killed countless civilians for merely mocking or laughing at him for his dream of being the Pirate King, killing several pirates in the New World for being weak, and attempting to kill Shanks' fleet solely to goad the Emperor to fight him.

Kid is bold, cocky and fearless, known to run into danger regardless of the consequences.[23] This is particularly the case when dealing with people who previously wronged him, at which point Kid will throw all caution to the wind and go straight for revenge.[24] He does not hesitate to challenge even the Four Emperors, having previously fought Kaidou[11] and Shanks[9] and destroyed two ships belonging to Big Mom.[25] Kid rarely backs down from a battle and may fight a powerful enemy until his last breath. The fact that he did not join the Beasts Pirates despite not standing a chance against Kaidou is a testament to Kid's disposition.[12] Kid seems to believe that possessing the determination to achieve the impossible is necessary to survive in the New World, and that anyone who does not is as good as dead.[21]

Kid is very prideful of his reputation and aims to reach a top spot in the world of piracy, which he plans to achieve by beating the Four Emperors, even if it means dying for it.[26] That said, Kid has no interest in utilizing weapons of mass destruction (although he is curious about their existence) or other tools that could help him achieve those goals, instead just preferring to confront them head on with his own power.[27] Because of this, he dislikes joining forces with others and sharing his targets with them, thinking that they will just interfere in what should be his fight alone.[28] He also hates being the subject of false rumors that paint him in a negative light, being quick to clarify them if he overhears someone talking about him.[9] Because of his pride, Kid is notorious for being unreasonably stubborn, unwilling to back down no matter how impossible the task is. Despite this stubbornness, Kid has shown moments of maturity, willing to put his pride aside to work with his fellow Worst Generation members in overthrowing the Emperors of the Sea.

Kid is shown to be quite cynical about the World Government. He is not blind to the way the World Nobles act, remarking that, compared to them, pirates are almost humane in nature and honest about their faults, unlike the Nobles that justify their abuses of power through ancestry.[22] After Camie had been sold in the Human Auctioning House to Charlos, Kid declared that the whole affair was a "farce"[29] and similarly held a similar point of view regarding the broadcast of the Summit War of Marineford, calling it a "charade".[30] For this reason, he felt amusement and catharsis when the world noble Charlos was punched down by an irate Luffy.[31]