CLANNAD
1ST Tomoyo Sakagami(坂上 智代,)
Voiced by Houko Kuwashima

Tomoyo transferred to Tomoya's school as a second year student during spring. 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?).

She is rumored to be violent and to have a misconduct record for fighting. These rumors are later confirmed, first when she beats up several students from her previous school one day at her new school during school hours. Unable to believe it, Youhei checks on her along with Tomoya, who tag along with him to kill time. The next day, Youhei provokes Tomoyo to a match, Tomoya recalls a legend in his town, an incredibly strong girl who wanders at night beating up bad people who bothers the ordinary. After recalling, Youhei is immediately defeated. Youhei refused to accept defeat, and upon meeting her the second time, even after Tomoyo warns him, he attacks her and is defeated again. Tomoya later learns from Tomoyo that she wants to be a student council president.

After learning about Tomoya's delinquency, Tomoyo decides to make both Tomoya and Youhei get out of their delinquent lifestyle. Both Tomoya and Tomoyo find interest in each other and become lovers. Although reluctantly, Tomoya assists Tomoyo to become the student council president. Tomoyo's relationship with Tomoya spreads fast in school, and a teacher and a student council member tries to separate Tomoyo and Tomoya, in hope Tomoyo will concentrate more in her position. With Tomoya worries about his delinquent status and a bleak future to ruin Tomoyo's future, Tomoya breaks up with Tomoyo. That winter, Tomoyo meets up with Tomoya, telling him that she successfully saved the cherry blossom trees from being cut down but she lost something in return: her time with Tomoya. She then confesses to Tomoya that she wants only him and will follow him to the odd ends. Tomoya is touched by her words and hugs her. After Tomoya graduates in spring, he sees both Takafumi and Tomoyo walking towards the school, with the cherry blossom blooms in pink.

Tomoyo's story continues at Tomoyo After: It's a Wonderful Life, Key's fifth game, a sequel to Clannad, as the main heroine.

In the movie, Tomoyo was already a student council president when Tomoya just met Nagisa. She also has a good relationship with Sunohara, as in the anime, the two often fight each other.

2ND Kyou Fujibayashi(藤林 杏)
Voiced by Akemi Kanda

Kyou is a bad-mouthed and aggressive girl who is also 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?) after Japanese food botan-nabe, or wild boar nabe. She even has her own motorbike (in this case a scooter), which is known only to Tomoya and her sister, as Kyou does not want the news of her possession of it to be known, as she fears suspension from school because she is not allowed to ride a motorbike to school. Her favourite weapon is various types of dictionaries, which are thrown at anyone she gets furious with, typically Youhei. In the anime, Kyou uses various books as weapons more often, and while Tomoya almost always avoids them, Youhei gets hit almost every single time.

Kyou's story starts when she tries to make Tomoya get intimately close with Ryou, thus becoming their cupid angel. After a rumor about Tomoya being two timer with Ryou and Kyou, Kyou starts avoiding Tomoya, Ryou becomes more bold. Youhei finds out that Kyou has a crush on Tomoya too, and advices Tomoya to settle things out before more misunderstanding happens. After much conflict of playing boyfriend and girlfriend with Ryou, Tomoya breaks up with Ryou and confesses his love to Kyou, in return confesses her love to him and become boyfriend and girlfriend. When autumn arrives, Ryou finds herself a new boyfriend, which is strongly hinted to be Kappei.

Kyou works as a kindergarten teacher in the After Story portion, and coincidentally is also Ushio's teacher. According to Tomoya, her personality is still the same even after reunion, but Ushio says that Kyou is a good teacher.

In the movie, Kyou doesn't talk to Tomoya as much as in the anime. Her relationship with Tomoyo is also better than the one in the anime

3RD Nagisa Furukawa(古河 渚)
Voiced by Mai Nakahara

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. On the first day of school, She meets Tomoya 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 drama club. She does not have much self-confidence so she often needs help in order to motivate herself through the day.

The major arc of the story revolves around Nagisa. After Tomoya befriends Nagisa, she tells him of her dream of joining the drama club. They soon discover that the club was disbanded, and has no members anymore. While attempting to recreate the club, Nagisa and Tomoya discover that they cannot advertise for new members, having missed the deadline to do so. In order to create an officially recognized club, they find they need at least three members and a sponsor teacher for the club, and the only one left is Koumura, who asks them to discuss with the chorus club members. After listening to Rie's story, Nagisa gives up reestablishing drama club. Youhei is furious about the story, and decides to have a 3-on-3 basketball match with the basketball team to prove that the chorus club members cannot hide behind their handicap. This happens to be a success, since the chorus club members decide to share Koumura with the drama club.

After Tomoya had a falling out with his father, Nagisa offers to have Tomoya move into her house until things settle down, to which Tomoya agrees. Curious about Nagisa's play which is the same as the illusionary world he dreamt, Tomoya tries to find about the story, which leads him to learn about the secrets behind Nagisa's sickness. Nagisa later also learns of the secret and becomes guilty about unknowingly forcing her parents to give up their dreams. However, this changes once her parents tell her that since that day, they had changed their dream to hers, and with the help of Tomoya, Nagisa regains the mental strength to act out her drama. Nagisa later succumbs to her sickness again, and is forced to repeat her third year again in After Story.

After Story is a continuation of Nagisa's story, where Tomoya works as an electrician, and Nagisa starts living together with Tomoya. In this story, Nagisa faces a tragedy and continues to battle with her sickness. She also successfully gives birth to Ushio, the daughter of her and Tomoya, however Nagisa dies shortly afterwards.

MAGICAL GIRL LYRICAL NANOHA SERIES

1ST Fate Testarossa(フェイト・テスタロッサ)
Voiced by Nana Mizuki

Abused by her ruthless mother, Fate regardless remains blindly and unquestioningly loyal to Precia and carries out her search for the Jewel Seeds. However, as Nanoha persists to try to learn her motivation and become her friend, Fate is faced with a shocking truth from everyone around her and must decide what to do with it.
Fate in A's
After the events of the previous season, Fate is acquitted as an accessory to her mother's crime and recruited by the Time-Space Administration Bureau. Quiet and reflective, she serves as a contrast to her dearest friend, Nanoha. Her familiar, Arf, and her device, Bardiche, are the only ones that were always there for her. Lindy Harlaown adopts her after her abusive, insane mother dies while attempting to reach Al Hazard in the first season.
Fate in StrikerS
Fate T. Harlaown is the commander of the Riot Force 6's Forward Lightning Squad and Nanoha's longtime best friend. She is also ranked S+ (restricted to AA for routine operations in Lost Property Riot Force 6 due to bureaucratic limitations), the third highest mage ranking.

2ND Nanoha Takamachi(高町 なのは)
Voiced by Yukari Tamura

This sweet grade three student feels that, though she plays a good supporting role in others' lives, unlike the rest of her family and friends, she has no closest friend to turn to and no direction in her own life. However, when she meets Yūno and discovers her strong aptitude for magic, Nanoha activates the magical crystal, Raising Heart, that Yūno was carrying and wholeheartedly carries out her search for the Jewel Seeds.
Nanoha in A's
Nanoha is a rarity in that she comes from Earth but has a surprisingly strong aptitude for magic. Wielding her device, Raising Heart, she finds her calling in protecting her friends with magic. She awaits the return of her friend, Fate, but it comes just as she is ambushed by Vita for her linker core, and she is thrown into the fray once again.
Nanoha in StrikerS
An experienced combat instructor who, with her intelligent device Raising Heart (sometimes called Raging Heart due to the actual Japanese pronunciation the seiyu use) and her best friends, has done great work for the TSAB. Takamachi, commander of the Forward Stars Squad of Lost Property Riot Force 6 (機動六課, Kidō Rokka?), despite her sweet and optimistic personality, is an S+ (restricted to AA for routine operations in Lost Property Riot Force 6 due to bureaucratic limitations) rank mage (the third-highest possible ranking) who will use force to subdue someone if absolutely necessary.

3RD Hayate Yagami(八神 はやて)
Voiced by Kana Ueda

Hayate in A's
Hayate, a sweet wheelchair-bound orphan, is under the care of the Wolkenritter, though they keep their battles from her; she knows that the completion of the Book of Darkness will grant her vast power, but does not want it at the expense of the lives of others. However, the Book of Darkness is feeding off her own life force, causing her paralysis, and will eventually kill her if it is not completed... Hayate and Suzuka become fast friends after Suzuka helps her around the library, which may cause trouble if their respective friends learn that they have been fighting each other.
Hayate in StrikerS
Hayate is a quiet and caring young woman who possesses one of the most fearsome Lost Logia that the universe has ever known. Ranked SS (restricted to about A for routine operations in Lost Property Riot Force 6 due to bureaucratic limitations), the second highest rank that a mage can attain (with SSS as the highest possible rank), she has a vast expanse of power that even the TSAB has trouble handling after ten years in the service. Lieutenant Colonel Yagami is the commanding officer of Riot Force 6, which she started, and is aided by Reinforce II, her unison device.