He is an anime-original character, originally the assistant of the machinery development department. Though he and his partners have come up with many ideas about how to make a virtual Embryo or catch the Embryo through X-Eggs, mostly resulted in failures and despised by Kazuomi.
A girl whom Kanta tried to save, she is very easy-going. She wanted to meet her father no matter what, but her mother is so overprotective of her that she forbid her to meet him and even chauffer couldn't bring her to the house of her father. She made an agreement with chauffer that she will find a boy who could save her from fake kidnapping so that she could visit her father during that time.
The main character in the story. An overall nice guy attending middle (and later high) school who gets caught up in many embarrassing but endearing romantic situations. Although his thoughts on girls can get quite perverted on occasion, his gentleness and kindness, as well as his selflessness at times, is what attracts girls to him. His dream is to make films as a director. While not academically gifted, he has great talent with cinematography that gradually develops as the story progresses.
The daughter of a local mayor, she is very concerned about the current state of Noah. When she meets with the children, she decides to leave her hometown. (Source: Wikipedia)
Yusuke is an electrician who once attended Tomoya's high school and lived as a rock musician. He is admired by Mei for his infrequent rock play. Tomoya first met Yusuke during a street light accident involving a person's car, and assists Yusuke in his work. Through Yusuke, he realizes the pain of working in society. Yusuke is engaged to Kouko, and is also one of the reasons why Fuko exists in the school. Clannad After-Story: He plays a more prominent role in After Story, giving Tomoya a job as an assistant electrician in his company, and sometimes gives him advice. Due to Tomoya's interest in him, Yusuke tells him of his past - how he became a rock musician, rose in fame, and ended due to his loss of his original motivation, along with stress and drugs. After being rehabilitated, no one wanted him anymore, except for Kouko, who had encouraged him to become a rock musician during his high school days. Throwing away his past, he now works as an electrician. Realizing that there are people who still love his music through Tomoya, Yusuke decides to create another music CD that sings his love for the city.
A little girl who stopped speaking after her mother, Dinah, died. Her father is a Topsider. Mana is from Amaurot, a town in Agartha.