There are many memorable characters. For example, Frieda Mensch. She brings a different cultural perspective to the school as she's from Germany. Also, Eustacia Benson with her rather prickly personality at first but then she grows and changes throughout the stories, which makes her really stand out.
Friendship is a major theme. The girls in the Chalet School form strong bonds with each other. Another theme is the importance of education. It shows how learning and personal growth are intertwined. Also, there is a sense of community within the school, with everyone having their role to play in the school's life.
In 'Toradora!', Taiga Aisaka is very memorable. She's a small but feisty girl with a sharp tongue. Ryuuji Takasu, with his gentle nature despite his 'delinquent' look, is also great. Their interactions are full of bickering and love, which makes them stand out.
There could be a character like Tom. He might be memorable because of his unique personality, say he's very brave in the face of danger. Another one could be Mary, who has a really kind heart and is always helping others in the stories.
Uhtred is surely one of the most memorable. His journey from a Saxon noble captured by the Danes to a warrior with a complex identity is really engaging. Then there's Alfred. His leadership and his vision for the Saxon kingdom are quite remarkable. And Brida too. She is a strong female character, fierce in battle and with her own set of beliefs.
There might be a strict teacher character. She is really tough on grading and discipline, but deep down she cares a great deal about her students' success. In some stories, she might end up helping a troubled student turn their life around in high school. Another memorable character could be the star athlete. He's popular, but also has to deal with a lot of pressure to perform well in every game and maintain his grades at the same time.
One memorable character could be a shy student who was really good at art. They would always sit in the corner of the classroom and draw amazing pictures. But they were so shy that they never showed their work to anyone until one day they were discovered by a kind teacher who encouraged them to share their talent.
Then there's Hannah. She is shy at first but as the story progresses, she gains confidence, especially when she gets involved in a school play. Her transformation is really inspiring and makes her a memorable character in Andrew Clements' school stories.
Sure. There was a chalet girl who once had a guest who was an elderly lady. The lady was quite lonely as she had lost her husband recently. The chalet girl spent extra time with her, listening to her stories about her life and love. By the end of the lady's stay, she was much happier and she left a very kind note for the girl, saying that she had made her holiday not just a trip but a healing experience.
In 'Kimi ni Todoke', Sawako and Kazehaya are very memorable. Sawako's transformation from a lonely, misunderstood girl to a confident one because of Kazehaya's love is really heart - touching. In 'Clannad', Tomoya and Nagisa's relationship is also unforgettable. Their story is full of ups and downs, and their love is shown in a very emotional way. And in 'Toradora!', Ryuuji and Taiga's bickering - filled relationship that turns into love is quite memorable.
Definitely Yuno Gasai from 'Future Diary'. Her extreme love and possessiveness towards Yukiteru make her stand out. She is willing to kill anyone who gets in the way of her relationship with him. Her cute appearance combined with her terrifying actions create a very memorable character.