A first-year at Ouran Academy and the only female member of the Host Club. She is a beautiful girl whose perceived gender changes depending on her clothes. She is afraid of thunder and is often mistaken for a boy. She finds many things bothersome. Since the other male characters are incredibly wealthy and she joined the club to pay off a debt from breaking an expensive vase, they initially thought she lived in extreme poverty, but her home is actually a typical middle-class household. She is a girl cross-dressing as a boy.

A second-year student. At first glance, he seems like a chic, handsome noble, but in reality, he is a pure, almost foolishly comedic character. He is the founder and president of the Ouran Host Club and boasts the highest popularity among female fans. As the son of the chairman, he has top-tier specs in terms of family background, academics, and looks. His position in the club is the 'Prince,' but he often acts like an idiot. In fact, he is a handsome idiot prince with a bit of a narcissistic streak.

A second-year and the third son of the medical-mogul Ootori family. He handles the finances and management of the Host Club and is effectively the final boss and mastermind behind the scenes. He is aware of everything that happens within the club and knows how to exploit it. While he hosts less than the other members, he still has a dedicated female fanbase.

A third-year student, but he looks like an elementary or middle schooler. Standing at 148cm, he looks perfectly natural even in an elementary school uniform. His position in the club is the 'cute younger brother' type.

A first-year. He is Kaoru's twin and they look so identical that they even created a 'Which one is Hikaru?' game. He is mischievous and is the older of the twins.

A first-year. He is Hikaru's twin and they look so identical that they even created a 'Which one is Hikaru?' game. He is mischievous and is the younger of the twins.

A third-year. He is silent and stoic, but despite his large build, he has a delicate personality. He seems to manage Honey-senpai's schedule, including snack time, nap time, and even brushing his teeth after meals. He ranked second in his year, with Honey being the top student.