Jem is Scout's older brother by four years. He starts with a childish perspective but matures over the course of the novel, influenced by the events of the Tom Robinson trial. He looks up to his father, Atticus Finch, and learns the qualities of being a gentleman.

Atticus is a lawyer and the father of Scout and Jem. He is a widower and raises his children with the help of their cook, Calpurnia. Atticus is a model of integrity and seeks to teach his children empathy and justice, especially when defending Tom Robinson in court.

Calpurnia is the Finch family’s cook and acts as a caregiver and educator to Scout and Jem. She introduces them to her Black church community, widening their understanding of Maycomb's social dynamics.

Dill is a friend of Scout and Jem who visits Maycomb every summer. Known for his imaginative games and interest in Boo Radley, Dill has a complex family situation which he escapes through play.

Miss Maudie is a neighbor of the Finches and serves as a role model for Scout. She provides companionship and offers alternative perspectives to Scout and Jem.

Boo Radley is a reclusive neighbor with a mysterious history. Though surrounded by rumors, he is a kind-hearted figure who watches over and leaves gifts for Scout and Jem.

Tom Robinson is a Black man accused of raping a white woman. He is characterized as kind and hardworking, showing compassion that leads to his legal troubles. Tom's case is central to the themes of justice and prejudice in the novel.

Bob Ewell is the head of a poor family in Maycomb and is antagonistic during Tom Robinson's trial. He poses a threat to the Finch family after the trial.

Heck Tate is the sheriff of Maycomb County and a major witness in the Tom Robinson trial. He strives to protect the community and shows fairness and justice.

Link Deas is Tom Robinson’s employer and one of the few non-prejudiced people in Maycomb. He supports Tom's character and helps his family during difficult times.

Mr. Cunningham is a poor farmer who pays Atticus with goods instead of money. He leads a mob against Tom Robinson, but is moved by Scout’s empathy to back down.

Mr. Dolphus Raymond is a wealthy white man who lives with a Black woman and their mixed-race children. He pretends to be a drunk to provide an excuse for his lifestyle to the townspeople.