The self-proclaimed President and 'King' of the Host Club, but in reality, he is a massive idiot, airheaded, and narcissistic. He is highly emotional, cries easily, and considers the Host Club members his 'family.' Born to a French mother and a Japanese father, he boasts a flamboyant appearance with blonde hair and violet eyes. He is the heir to the Suoh Group, Japan's top conglomerate, and the son of Ouran Academy's chairman. He plays the [Prince] type in the Host Club. He is male, blonde, purple-eyed, and incredibly handsome.

The third son of the medical-industry Ootori family. Since his first and second brothers are so outstanding, he has lived a life of constant comparison. He acts as the ultimate mastermind behind the Host Club. He is the Vice President and the [Cool] type. He has black hair, brown eyes, and wears round glasses. He is stunningly handsome when he takes his glasses off. He suffers from low blood pressure.

Hikaru Hitachiin's twin brother. Unlike his hot-tempered brother Hikaru, he has a rational and considerate personality. In the Host Club, he performs 'forbidden brotherly love' (BL fanservice) with his brother. He plays the [Little Devil] type. He is from the Hitachiin family, and his mother is a famous artist.

Kaoru Hitachiin's twin brother. He is a prickly tsundere [Little Devil] type who is jealous and poor at expressing his emotions. He often plays the 'Which one is Hikaru?' game with female students. He is from the Hitachiin family, and his mother is a famous artist.

Possesses an incredibly cute and adorable appearance. He is the 'Loli-Shota' type of the Host Club. Despite his short stature and cute looks, he is a gap-moe character who drives women wild by being a master martial artist. He always carries a stuffed rabbit named 'Usa-chan.' A high school student who looks like an elementary student, with light brown permed hair and large, sparkling dark brown eyes. His nickname is 'Honey.' He tends to shorten people's names (e.g., Takashi Morinozuka = Mori). He loves desserts very, very much (especially cake).

Possesses spiky black hair, a wild charm, and slightly tanned skin. A member of the Host Club, he is the [Wild] type, remaining stoic with almost no change in expression. He is Honey's cousin and always looks after him. He is a giant, standing at 192cm.

1st Year, Class A, Ouran Academy High School Division / Special Merit Scholar of the Ouran Host Club (the so-called 'Commoner' student). She gets into debt after accidentally breaking a luxury ceramic vase (worth 8 million yen). To pay off the debt, she begins working as a Host Club member, disguising herself as a boy despite being female. She holds the value that 'inner character is more important than appearance or gender.' Her dream is to become a lawyer. She is extremely afraid of lightning and has a habit of hiding in closets when it thunders. She has dark brown hair and bright brown eyes. She is a beautiful girl, but when dressed in men's clothes, she has a handsome, pretty-boy vibe. She is the [Natural] type.

A bit over-the-top. After living in France, she saw a photo of the Host Club and came to Japan to become their manager. She is prone to extreme fangirling and delusions (though she calmed down a bit because of Haruhi). Because Kyoya Ootori resembles a male lead in a dating sim, she sometimes deludes herself into thinking she is his fiancée. Conversely, she also critiques the Host Club's concepts. She has long, light ochre hair with side-swept bangs and always wears a pink ribbon.

Usually wrapped in a black cloak with a gloomy atmosphere, but in reality, he is an incredibly handsome man with fair skin, beautiful blonde hair, and blue eyes. He has a constitution that hates light and collapses if exposed to too much sunlight. He even finds his own bright blonde hair too dazzling, so he usually wears a dark green wig. As the president of the Black Magic Club, he always carries a curse doll named 'Beelzenef,' giving students a scary impression.