The Naughtiest Girl in the School

Elizabeth Allen is a pretty girl with dark curly hair and blue eyes. All her life she had done as she liked and been spoiled by her family. She also hates school. Six governesses had come and gone, but not one of them had been able to make Elizabeth obedient or good mannered. All the governesses failed; no one got success and she is almost 11 years old. She does not like other boys and girls. They were shocked at her mischief and rude ways. Her governess, Miss Scott, describes her trouble:

The trouble is that people have loved you too much. You are pretty, and merry, and rich, so you have been spoiled. People like the way you look, the way you smile, and your pretty clothes, so they fuss you, and pet you, and spoil you, instead of treating you like an ordinary child, But it isn't enough to have a pretty face and a merry smile — you must have a good heart too.

Completely unlike Elizabeth, Joan Townsend is gentle, timid, shy and nervous of confronting people or speaking in public. She was a red-haired girl with freckles who is timid because she was left in the background by her parents, who had another child, a boy called Michael who died when he was young. Due to his death, Joan's parents didn't think about it much. Although timid, Joan is not weak or silly; later in the series she is found to be an extremely mature and understanding girl. She becomes a calm girl that is sensitive for doing the right thing. She is Elizabeth's best friend and her first friend was Elizabeth.

Nora O'Sullivan, a monitor at Whyteleafe school, is a girl who upholds its traditions. She is very responsible, jolly and sensible, but does not look below the surface. Elizabeth gets into a lot of trouble with the sometimes unreasonable and strict monitor. Nora looks after the girls in dormitory 6 including Elizabeth, Joan, Ruth, Belinda and Helen. Nora is a strict but fair girl and hates it if the school's traditions are disobeyed. She is Irish.

William and Rita are the head children at Whyteleafe School. They are very understanding and kind and firm in a way. They are well known and highly appreciated around the school. they are the judges at the school meetings and they are also looked up at by almost all the students.

Richard is a sensitive boy who is brilliant at music. Once Richard and Elizabeth used to be enemies but becomes one of Elizabeth's best friends. he also plays a duet with Elizabeth at the end of term concert and whispers to Elizabeth "you're a good sort!" when Elizabeth decides to stay on at Whyteleafe School.

Although Harry Dunn is introduced as a sly-faced boy and a cheat. His behaviour was dealt with and cured by the Meeting. His relationship with Elizabeth started out badly, with Elizabeth paying a nasty trick on him, slapping him and calling him a cheat when he was not one anymore. But he was a kind and generous boy and would do anything to make Elizabeth forget about their fight.

Like Richard, John Terry is also a one sided boy, devoted to gardening and little else. Elizabeth and John have a very good relationship early in the book. John is fond of gardening, due to his and Elizabeth′s common interest in gardening, they become good friends, Elizabeth helping John with his gardening.

Michael was Joan's twin brother who died from an illness while Joan survived. As a result, Joan's parents ignored her until Elizabeth's actions instigated a meeting and Joan's mother told Joan the truth at Whyteleafe. Michael was described as "bonny and laughing" while Joan was described as "sulky and selfish" and Joan's parents couldn't help loving him more as they always wanted a boy and didn't care much for girls.

Miss Belle and Miss Best are the joints headmistresses of Whyteleafe School. They are referred to as "The Beauty and the Beast", a name intended to be rude by Elizabeth but stuck. While they leave it to the children at the meetings, they can be called for help by the head boy and girl.