Well, Ottoline is surely one of the main characters as the story is about her going to school.
Perhaps we can learn about the importance of education from Ottoline's story. When she goes to school, she might discover new knowledge and skills, which shows how school can be a place for growth. For example, she could learn to read, write, or do math, and these are all valuable things that education offers. Also, through her interactions with teachers and classmates, we might understand the social aspect of school life better.
From what we can assume from the title 'Ottoline and the Yellow Cat', Ottoline is surely one of the main characters. She could be a young girl or a unique creature. And the Yellow Cat is another key character. They might have a special bond. Maybe Ottoline found the Yellow Cat one day and since then they have been inseparable, going through different experiences together in the story.
Froggy's classmates could also be main characters. In a school story, the interactions between Froggy and his classmates are usually important parts of the plot. They might study together, play together, and experience different things together, which makes them important characters in the Froggy Goes to School story.
Pepper is surely one of the main characters as the story is about Pepper going to school.
Well, Pippi is the central figure in the 'Pippi Goes to School Story'. Alongside her, there could be a friendly classmate who becomes Pippi's first friend in school. And there may be a headmaster or principal who has to deal with Pippi's unique personality and the situations she creates in the school, like when she does something unexpected during an assembly or in the classroom.
Perhaps some of Noddy's classmates could also be main characters. They would play a role in Noddy's school experiences, like sharing toys or helping each other with schoolwork.
Well, Timothy must be one of the main characters since the story is named 'timothy goes to school story'.
The main character is surely the gingerbread kid. But there might also be teachers, classmates, or other school staff in the story.
Obviously, Dora is a main character. There might be her parents who help her get ready for school.
Most likely Barney is the main character. There may also be teachers, classmates, and perhaps a school principal.