Sylvia is a 15-year-old student who loves poetry, excels in school, and enjoys spending time with her friends and family. As Little Rock prepares for school integration, she is chosen as a candidate to attend Central High. She wrestles with the pressure of representing her community while she manages normal teenage concerns like her first crush.

At eight years old, Donna Jean is the youngest member of the Patterson family. She is observant and inquisitive. She often points out the unfairness of the adult world. Her early experience with racist violence strips away some of her innocence but solidifies her family's protective instincts toward her.

Mrs. Patterson is a devoted mother and a full-time teacher at a segregated school. She keeps a clean home and heavily relies on her Christian faith. She frequently advises patience in the face of racial injustice. While her older children sometimes view her approach as too passive, she consistently supports them through their individual struggles.

Gary is Sylvia's 17-year-old brother. He holds deep frustration with the systemic racism in Little Rock. He is eager to place himself on the front lines of integration. He believes action is required rather than patience. His short temper frequently clashes with his parents' more cautious approach to civil rights.

Mr. Patterson is a local pastor who also works a second job at a brickyard to support his family. He witnessed his own father's lynching during his childhood. This trauma causes him to harbor deep fears about the safety of his children. He initially advocates for the protective environment of segregated schools before he shifts his perspective on integration.

The Crandalls are a white, anti-integrationist family in Little Rock. Mr. Crandall trains dogs to attack Black residents. Mrs. Eileen Crandall serves on a hostile school board. Their son Johnny violently harasses the Patterson children. Together, they represent the entrenched, aggressive racism of the era.

Reggie is an eighth-grade classmate who excels in math and science. He wears signature worn-out blue sneakers and develops a mutual crush on Sylvia. As racial tensions rise, he strongly opposes the idea of Sylvia integrating Central High. He prefers she stay safe and accessible at their current school.

Miss Washington is a strict but deeply caring English and social studies teacher at Sylvia's school. She pushes her students to excel. She knows they must be doubly prepared to face a racist society. She serves as a mentor figure. She recognizes Sylvia's level-headedness and recommends her for the integration program.

Rachel is a white, Jewish teenager whose family owns the grocery store frequented by the Pattersons. She enjoys a lifelong friendship with Sylvia. The two girls bond over music, magazines, and the limitations placed on young women. Her family's history with antisemitism creates a foundation of solidarity between her and Sylvia's community.

Aunt Bessie is a relative of the Pattersons who works as a domestic laborer. She washes and irons shirts for white employers like Mr. Crandall. She is tired of the passive, faith-only approach to combatting racism and frequently voices her frustration with the lack of progress in Little Rock.

Mr. Zucker is a German Jewish immigrant who survived the Auschwitz concentration camp. He bears a visible number tattoo on his arm. He runs the local grocery store and maintains a respectful, fair relationship with the Black community. This makes his store a safe place for families like the Pattersons to shop.

Johnny is a racist white teenager who frequently cruises Black neighborhoods looking for people to terrorize. He actively harasses the Patterson siblings. He uses physical violence and verbal threats to intimidate them out of supporting integration.

Bubba is a local white teenager who targets Black residents for harassment alongside his brother Sonny and Johnny Crandall. He participates in the violent intimidation of the Patterson children.

Sonny is a white teenage boy who frequently trolls the streets of Little Rock alongside his brother Bubba. He acts as part of a gang that physically and verbally assaults Black citizens.

Jim is a white teenage boy who steps in to stop a racist assault against Sylvia and Donna Jean. He chases the attackers away and politely offers the girls a ride. He serves as an early example of an ally in a hostile environment.

Lou Ann is one of Sylvia's friends and classmates. She has a steady boyfriend herself and offers Sylvia advice on romance. She discourages Sylvia from participating in integration. She argues it is not worth losing out on normal high school experiences.

Calvin is the class clown in Miss Washington's room. He frequently disrupts lessons. However, he is quick-witted enough to accurately answer questions about desegregation laws to avoid getting into trouble.

Miss Lillie owns a local flower shop where Sylvia runs errands. She is a supportive member of the Black community who holds high expectations for Sylvia's future. She believes the young girl is capable of changing the world.

Candy is a student at Sylvia's school. She actively flirts with Reggie Lewis. This causes Sylvia significant jealousy and sparks early tensions in Sylvia's romantic life.

Mrs. Zucker is Rachel's mother. She helps run the family grocery store and holds traditional expectations for her daughter. She hopes her daughter will eventually marry a nice Jewish boy.

Miss Daisy is the president of the Arkansas NAACP. She plays an instrumental role in coordinating logistics and safety for students. She ensures the integration efforts have press coverage and escape routes.