Sula is a fiercely independent young Black woman characterized by a distinct birthmark over her eye. Raised in a matriarchal home devoid of traditional boundaries, she ignores societal expectations regarding marriage, family, and respectability. Her deep, complex bond with Nel serves as the emotional center of her early life, grounding her otherwise wandering spirit.

Nel is Sula's closest companion, raised in a conservative household that values respectability above all else. Finding her mother's desire for social conformity suffocating, Nel asserts her own identity by befriending the unconventional Sula. She eventually settles into the societal expectations of womanhood, seeking stability and traditional family life through marriage.

Helene is Nel's mother, a woman who meticulously curates a life of extreme respectability and devout religious practice. Born in a New Orleans brothel, she spends her adulthood aggressively distancing herself from her origins. She runs a strict household and attempts to mold her daughter into an equally obedient and proper young woman.

Eva is the formidable matriarch of the Peace family, having survived severe poverty and abandonment to build a large boarding house. Missing one leg under mysterious circumstances, she directs the lives of her children, grandchildren, and numerous boarders with absolute authority. She is pragmatic and fiercely protective, making drastic decisions to govern her family's fate.

Hannah is Sula's mother and Eva's eldest daughter, known throughout Medallion for her striking beauty and easygoing nature. Unlike her controlling mother, Hannah avoids conflict and genuinely enjoys the company and affection of men without demanding commitment. Her casual approach to intimacy profoundly shapes Sula's understanding of relationships.

Shadrack is a severely traumatized World War I veteran who lives as a hermit on the outskirts of Medallion. To cope with his overwhelming fear of unexpected death, he institutes National Suicide Day as a way to confront mortality. Despite his erratic behavior, he becomes a recognized fixture in the community.

Jude is an ambitious young man in Medallion who feels stifled by the racial discrimination that prevents him from securing meaningful construction work. Seeking a sense of manhood and validation that the outside world denies him, he turns to marriage. He relies heavily on Nel to provide the emotional support he craves.

Plum is Eva's only son and favorite child, returning from the war carrying deep psychological wounds. Unable to cope with civilian life, he retreats into a severe heroin addiction, spending his days in a stupor. His decline creates a profound crisis for Eva, who cares for him but struggles with his helpless suffering.

Ajax is a graceful, sharp-tongued local man known for his love of airplanes and his easy way with women. He possesses a strong sense of personal freedom and treats Sula as an intellectual equal, avoiding the condescension typical of other men in town.

BoyBoy is Eva's estranged husband who abandons his family to pursue his own desires. His brief, flashy return visit to Medallion crystallizes Eva's lifelong resentment and hardens her approach to survival.

Wiley is Nel's father and Helene's husband. He provides a comfortable, middle-class life for his family but remains largely absent from daily household dynamics due to his work on the shipping lines.

Chicken Little is a small neighborhood boy whose playful encounter with Sula and Nel by the river results in a tragedy. This event binds the two girls together in a lifelong, heavily guarded secret.

Tar Baby is a quiet, light-skinned boarder at the Peace household who drinks heavily to numb his internal pain. Despite his likely white heritage, his choice to live in the Bottom aligns his social identity entirely with the Black community.

The Deweys are three unrelated boys of different racial backgrounds whom Eva takes in and gives the same nickname. They blend into a single, inseparable trinity that moves, speaks, and acts as one entity throughout their lives.

Rochelle is Helene's mother, a Creole sex worker in New Orleans. She represents the vibrant, unapologetic lifestyle that Helene desperately tries to erase from her family's legacy.

Cecile is Helene's grandmother, a strict, religious woman who provides Helene with a respectable alternative to Rochelle's lifestyle. Her failing health initiates a significant trip back to the South.

Pearl is Eva's younger daughter, who escapes the chaotic Peace household by marrying at fourteen and moving to Flint, Michigan, occasionally sending small amounts of money back home.