Aibileen is a middle-aged Black maid known throughout her community for her quiet wisdom and powerful prayers, which she writes down nightly. She works for the Leefolt household, where she takes on the primary responsibility of raising their neglected toddler, Mae Mobley. Having recently lost her twenty-four-year-old son, Treelore, Aibileen feels a growing bitterness toward the racial inequalities in Jackson, Mississippi. She cautiously agrees to help a young white writer document the real experiences of domestic workers.

Skeeter is a twenty-three-year-old recent graduate from the University of Mississippi who dreams of becoming a professional writer. Unlike her peers, she is unmarried and feels increasingly alienated from the society ladies of Jackson. She actively resists her mother's attempts to straighten her frizzy hair with the Magic Soft & Silky Shinalator and remains determined to uncover the truth about why her beloved childhood maid, Constantine, suddenly left her family's employment.

Minny is an outspoken Black maid and mother of five who struggles to keep a job due to her quick temper and sharp tongue. Despite her reputation for talking back, she is widely regarded as the best cook in the county. After being fired by Mrs. Walters and blocked from other jobs by Hilly Holbrook, she desperately accepts a secret position working for an outcast society wife. She lives in constant fear of her abusive husband but maintains a fierce, protective attitude toward her friends.

Elizabeth is a thin, status-conscious society lady who constantly worries about keeping up appearances despite her family's tight budget. She sews covers for worn household items to maintain an illusion of wealth. She eagerly follows the social lead of her dominant friend, Hilly Holbrook, and shows remarkably little affection for her own daughter, choosing instead to focus on social climbing.

Hilly is the president of the Jackson Junior League and the undisputed queen bee of the town's white society. She uses her position to manipulate others and enforce strict racial segregation, championing a measure requiring separate bathrooms for Black domestic workers. She expects total loyalty from her friends and actively punishes anyone who challenges her social authority.

Celia is a young white woman originally from a poor background in Sugar Ditch who recently married into Jackson high society. She wears heavy makeup and tight clothing, making her an outcast among the proper Junior League ladies. Lonely and entirely unable to cook, she secretly hires Minny Jackson to teach her how to fry chicken with Crisco and manage the large house, hoping to impress her husband.

Charlotte is Skeeter's traditional Southern mother who runs the family's cotton plantation, Longleaf. She believes a woman's primary purpose is marriage and constantly criticizes her daughter's physical appearance and independent choices. She stubbornly refuses to tell Skeeter the true reason behind their longtime maid Constantine's sudden departure.

Constantine is the Black maid who worked for the Phelan family for twenty-nine years and effectively raised Skeeter. She provided the young girl with unconditional love and taught her to think independently. Her sudden and unexplained disappearance shortly before Skeeter's college graduation serves as a central mystery driving Skeeter's current actions.

Mae Mobley is Elizabeth's chubby, neglected three-year-old daughter. She receives little affection from her biological mother and instead forms a deep, maternal attachment to her caretaker, Aibileen. Aibileen makes a daily point to tell the child she is kind, smart, and important to counteract the household's negativity.

Stuart is the handsome son of a state senator who is set up on a date with Skeeter by Hilly Holbrook. He carries emotional baggage from a previous broken engagement, making him initially abrasive and dismissive before slowly showing genuine interest in Skeeter's unique, outspoken personality.

Johnny is a successful Jackson businessman who previously dated Hilly Holbrook before unexpectedly marrying Celia. He is kept in the dark about Minny's employment, as Celia desperately wants him to believe she is managing their large home and cooking meals entirely by herself.

Treelore was Aibileen's twenty-four-year-old son who died in a tragic work accident before the events of the story. He was a bright young man who loved reading and had plans to write a book about his experiences as a Black man in Mississippi. His death profoundly changes Aibileen's worldview.

Mrs. Walters is Hilly's aging mother who is slowly losing her independence. She is Minny's former employer until Hilly forces her into an old folks' home. Unlike her daughter, she occasionally shows a sharp sense of humor regarding Hilly's controlling nature.

Yule May is Hilly Holbrook's educated maid who works hard to provide for her family. She quietly observes the society ladies and is one of the first maids Aibileen considers approaching for Skeeter's project, though the extreme risk of working in Hilly's house makes her hesitant to get involved.

Leroy is Minny's husband and the father of their five children. He is frequently drunk and highly abusive, keeping Minny in a state of constant anxiety about his temper and his reaction to her unstable employment situations.

Elaine Stein is a senior editor at Harper & Row in New York City. She initially dismisses Skeeter's naive job application but eventually offers her gruff, practical advice about finding real, challenging stories to write if she wants to be taken seriously.

William is Hilly's husband who holds political ambitions in Jackson. He generally supports his wife's social dominance and benefits from her highly organized networking efforts within the community.