Tomoya Okazaki (岡崎 朋也, Okazaki Tomoya?)
Tomoya is the male protagonist of Clannad. Due to his habit of always arriving late to school, skipping classes during the day, and staying out all night, he has been labeled as a delinquent, or a young person who defies authority. Ever since his mother, Atsuko, died in a car accident when he was young, Tomoya has been living with his father, Naoyuki, with whom he argues constantly. Tomoya's right shoulder was irreparably injured during a fight with his father three years ago. As this injury permanently costed him his talents and his dreams to compete in inter-highschool Basketball, and the fact that his father now treats him as a stranger, caused his relationship with his father to become practically non-existent. Voiced by: Kentaro Ito (game), Kenji Nojima (movie), Yuichi Nakamura (anime)



Nagisa Furukawa (古河 渚, Furukawa Nagisa?)
Nagisa is the main heroine of Clannad. Although she is in her third year in high school, as is Tomoya, Nagisa is actually one year older since she had to repeat her third year after an illness that lasted nine months. Tomoya, returning on the first day of school, met her on a long hill path in front of the school. She has a strange habit of muttering the names of food that she plans to eat as a way to motivate herself, such as anpan. She wants to reestablish the once-disbanded theatre club. She does not have much self-confidence so she often needs help in order to motivate herself through the day. Voiced by: Mai Nakahara



Kyou Fujibayashi (藤林 杏, Fujibayashi Kyō?)
Kyou is a bad-mouthed and aggressive girl well known as a good cook. She was in Tomoya's class in their second year, and has maintained a steady friendship with Tomoya even though they are put in different classes on their third year. She is currently the class representative of her class. She has a pet baby boar named Button (ボタン, Botan?). Voiced by: Ryō Hirohashi



Kotomi Ichinose (一ノ瀬 ことみ, Ichinose Kotomi?)
Kotomi is another schoolmate of Tomoya's in the same year, but, like Kyou, in a separate class from Tomoya. She is ranked in the top ten throughout the whole country in standardized exam results of every subject — she always goes to library to read extra materials, especially books in foreign languages. Kotomi is a very quiet girl and it is quite difficult to communicate with her. In her spare time, she plays the violin. Voiced by: Mamiko Noto



Tomoyo Sakagami (坂上 智代, Sakagami Tomoyo?)
Tomoyo transferred to Tomoya's school as a second year student during spring. She is rumored to be violent and to have a misconduct record for fighting. These rumors are later confirmed when she beats up several students from her previous school one day at her new school during school hours. Unlike most delinquents, Tomoyo's fighting prowess seems to stem from actual training in martial arts rather than talent and raw brutality; her preference is kicking over punching. Although Tomoya is older than her, Tomoyo does not show him his due respect as a senior student. She has a younger brother named Takafumi (鷹文, Takafumi?). Tomoyo appears in Key's fifth game, Tomoyo After: It's a Wonderful Life, as the main heroine. Voiced by: Houko Kuwashima



Fuko Ibuki (伊吹 風子, Ibuki Fūko?)
Fuko is a first year student at Tomoya's school. She is always alone by herself, making wood carvings of starfish with a small knife to give to others as presents. This hobby drains her concentration and awareness of her surroundings wholly. Voiced by: Ai Nonaka

Tomoya Okazaki is a third year high school student who dislikes his life. However, Tomoya finds that his life is about to change when he meets Nagisa. Tomoya's mother (Atsuko) died when Tomoya was young, leaving his father (Naoyuki) to raise him. After the accident, Tomoya's father turned to alcohol and gambling, and held frequent fights with his son. One day, Naoyuki, again arguing with his son, slammed Tomoya against the wall, dislocating Tomoya's shoulder. Ever since then, his father has treated Tomoya nicely, but distantly, as if Tomoya and he were strangers rather than a family. This hurts Tomoya more than his previous relationship with his father, and the awkwardness of returning home leads Tomoya constantly to stay out all night. Additionally, the injury disables Tomoya from participating in his basketball club, and pushes him to distance himself from his school and other activities. Thus his delinquent life begins.

Tomoya's psychology is further developed in his dreams of a bleak world. In the first few dreams of that kind, he sees a world which is devoid of all people except for this one girl, whom is never shown but is spoken of. Each time he dreams he finds out more about the world. Later on, Tomoya finds out that the girl has a special ability to fuse junks together to create new things, with which she creates a body for him. Thus he is reborn in this world, and fills time following the girl around. Tomoya conceives that only the two of them are "alive".

To pass time, Tomoya and the girl try to build another doll with more junk they find, but as it has no soul, it fails to come to life. Eventually, winter sets in, and the girl becomes cold to the point where she cannot move any more. Remembering a distant world where he came from, Tomoya convinces the girl to build a ship so that the two can escape the winter and continue a happy life. However, their flight is doomed to meet tragedy.