Main Characters:
* Bully Bluford: The protagonist of the series. He's a bright and resourceful boy who is often underestimated due to his size and his reputation for being a bully. However, he has a good heart and a strong sense of justice.
* Marty: Bully's best friend. He is loyal, fun-loving, and often acts as the voice of reason for Bully.
* Ms. Frizzle: Bully's teacher, who is known for her eccentric teaching methods and her unwavering belief in Bully's potential.
Recurring Characters:
* Sam: Bully's younger sister. She is intelligent, compassionate, and often helps Bully see the error of his ways.
* Papa Bluford: Bully's father, who is a loving but stern figure. He encourages Bully to be a good person and to make responsible choices.
* Mama Bluford: Bully's mother, who is a warm and nurturing presence in his life. She believes in Bully's goodness and supports him unconditionally.
* The School Principal: A strict and often humorless figure.
* The School Nurse: A kind and understanding figure.
* The School Bully: A larger and more aggressive bully who frequently torments Bully and his friends.
Supporting Characters:
* Bully's Friends: A group of friends who are often the targets of Bully's bullying but also stand by him.
* The School's Students: A diverse group of students with their own personalities and backgrounds.
The characters in the Bully Bluford series are complex and relatable, and they teach valuable lessons about friendship, family, and finding your true self.