Unlike other characters in The Host Club, she comes from a poor family. It is thanks to the scholarship that she is able to enter Ouran High. The heroine of the story who ends up joining the club disguised as a boy to pay back a debt of 8,000,000 yen she incurred by breaking a valuable vase. In the host club, she is the "natural type". She can be very blunt when talking; hurting people without meaning to. Her denseness could almost compete with Tamaki's; during her middle school years, she had a lot of admirers but unknowingly turned them all down.
The idiotic host king, who created and founded the club. He is very charismatic and charming and considers himself the "Daddy" of the group. He is also the "princely" type or "the king" in the host club. He considers his relationship with Haruhi as paternal in nature, but is often seen using it to mask his true feelings that he is in love with her. The twins use that to their advantage and harass Haruhi in front of him to anger one or both of them. He also has has a strange interest in the commoner and Japanese lifestyle from him moving to Japan from France when he was fourteen due to family issues. His reason in starting the host club was simply because he wanted to make others smile and be happy.
The Vice President of The Host Club, the co-founder, the third son of the Ootori Group. In the host club, Kyouya is seen as the "cool type". He, like the rest of the members of the club, is very handsome. He carries a clipboard with him and it is a long-running joke that it is unknown what he writes in said clipboard. In almost everything he does, he gets something out of it. Kyouya also researches all who attend Ouran Academy and appears to know 'everything about everyone'. He is considered the "Mummy" of the group by Tamaki. He is also known to have low blood pressure, so if one tries to wake him up from his slumber, they are going to have a very mean and unhappy Kyouya. Tamaki is his closest friend.
Hikaru and Kaoru Hitachiin
The twins; they are devious and funny. They are seen as the "little devil type". Hikaru is the older twin, little devil #1, and Kaoru is the younger twin, little devil #2. Haruhi and Tamaki are the first ones who can tell them apart, while their mother, Yuzuha Hitachiin hid that she could. Their contribution to the host club is when they do their routined act of "forbidden brotherly love" with suggestive yaoi in it, Hikaru's part as the "seme" and Kaoru, the "uke". Whether they are homosexual or not is questionable due to their very close relationship.
Also known as "Honey" for short (or "Hunny" acording to the manga). In the host club, he is known as the "Shotacon" type. He looks like an elementary school child rather than the 18-year-old third-year student that he actually is, which gives him an excuse to look cute while holding toy bunny, Usa-chan, with him around the school. What he mainly does in the club is eat cake with his clients. He is very strong for his size, coming from a martial arts family and is very close to his cousin; Mori. In fact, he is so adept at martial arts that, according to the Japanese Defense Ministry, if he ever used his full ability, he could be classed as a weapon of mass destruction. Honey is also the only host club member to call Mori by his first name. He has a fondness of and anything cute, like bunnies and eating a lot of cake, making his little brother, Yasuchika "Chika" Haninozuka see him as some sort of alien, though he does look up to him in away for his older brother's
Also known as "Mori", his character is the "strong, silent type" or the "stoic type" in the host club. He is the tall, and most quiet member of the group. His strength can compare with Hunny's but instead of martial arts, he does kendo, and happens to be the champion of kendo at school. Mori dedicates his life to Hunny by protecting him and only gets emotional when Honey is injured or harmed. He is also very close to the other club members and many classmates look up to him because of his quiet, gentle nature, despite his intimidating appearance. He usually only speaks when necessary, and responds to questions mostly with monosyllabic answers. Mori's family served Hunny's family until a marriage two generations ago made them cousins. Even though the servant-master bond was technically broken, Mori still serves faithfully as Honey's guardian and best friend.