William D. Chapston

William tends to take the events of life in stride and is often noted to be rather lighthearted and humorous. In a true showman fashion, he has a tendency to be somewhat exaggerative, often acting in a comically overly polite manner towards the people he meets in order to throw them off or, alternatively, to gain their trust. He is fairly sarcastic and witty, often making jokes and quippy remarks. Not the nicest of the nice, but also not the meanest of the mean, he usually tries to take a civil approach to conflict. However, once William feels nervous or insulted he's quick to start fights, often with lethal force (even against old men). When in combat, he tends to employ psychological warfare, often mocking and taunting his opponents in order to distract them.

In spite of his lackadaisical attitude to life, William does rarely display a more serious and empathetic attitude, even swearing a vow to not harm the elderly anymore(much to Duros' delight), although he joked about killing an 80 year old Marine on Clown Island. William also claims his cut off age for 'elderly' murder is 55. He also really likes pineapple juice and is by far the most unpredictable member of the Crew, both due to his mannerisms and the nature of his Devil Fruit. He also loves playing poker with Louis, since the latter sucks at poker.

William despises slavery in all of its forms. Although the fact that he allowed the slaver Bullet to live and be an integral part of his operation casts doubt on if he actually believes this.

Even though William doesn't seem like a typical captain on the surface, he is actually highly protective of his crew and cares about them very much, frequently calling them his family. In fact, despite his generally relaxed and easygoing disposition he will always prioritize the safety and well-being of his crew over everything else, even if it means potentially allowing someone else to die. While originally intended to be a Chaotic Good aligned character, William has since become a Chaotic Neutral character.

Ironically enough, he is the only one of the initial Devil's Luck Pirates not motivated by some form of personal revenge. Despite this, it is very easy for him to become enraged, such as when he had his sword stolen by Soldi. He is a mercurial individual, centering his entire persona around gambling the second he ate the gambling fruit. He recruited Jimmy solely on a whim. He also tends to kill people on a whim. He is very spiteful and petty, whether it be mocking the cooking of a parent when the enemy is dying or getting into small arguments with an adolescent.

William is a Devil Fruit user who has consumed the Roulette Roulette no Mi, which allows him to spin the small roulette wheel on his chest and depending on what number appears William will get a random devil fruit, even if someone living already has said devil fruit.

As far as romance goes William is a bit open and goes with the flow, however he tends to lean towards individuals who are just as chaotic as he is