Avey is a 64-year-old widow from the wealthy neighborhood of White Plains, New York. She relies on meticulous order, stylish clothing, and material comforts as markers of the middle-class status she achieved with her late husband. Prompted by unsettling dreams and strange physical sensations, she leaves her cruise vacation to seek a flight home. This detour initiates an unexpected journey that forces her to reflect on her past and her disconnected heritage.

Jerome is Avey's late husband. Early in their marriage in Brooklyn, he is a joyful and affectionate partner who loves dancing and reciting poetry. The pressure to escape poverty and provide for three children profoundly changes him. He becomes a relentless worker and austere provider, adopting harsh views to succeed in a prejudiced society.

Thomasina is an outspoken, light-skinned woman traveling with Avey and Clarice. A former chorus line dancer, she takes immense pride in her appearance and social status. She openly expresses her anger at Avey's sudden departure and harbors internalized prejudices regarding race and class.

Clarice is a 58-year-old widow and long-time coworker of Avey. She is timid, easily disheartened, and carries a burdened expression from a lifetime of personal tragedies. She lacks confidence and quickly assumes she is to blame for Avey's abrupt desire to leave the cruise.

Marion is Avey and Jerome's youngest daughter. Quiet and observant since childhood, she grows up to hold strong beliefs regarding civil rights and her cultural heritage, often disagreeing with her parents' focus on material wealth.

Great-Aunt Cuney is Avey's ancestor from Tatem Island, South Carolina. She was deeply committed to preserving the local legend of the Ibo people walking on water. She passed this story down to Avey during childhood summers, entrusting her with a cultural mission.

Lebert is an elderly rum shop owner originally from the island of Carriacou. Despite his age and a pronounced limp, he possesses vibrant energy and an intuitive understanding of cultural traditions. He recognizes Avey's spiritual distress when she wanders into his bar.

Rosalie is Lebert Joseph's daughter who lives on Carriacou. She tends to Avey after a difficult boat passage, washing and massaging her limbs. Her restorative care brings comfort and physical relief to her tired guest.

Milda is a young maid working on Carriacou. She assists Rosalie in caring for Avey and attends the local drum celebration, momentarily reminding Avey of her family members from the past.

Sis is Avey and Jerome's oldest daughter. She naturally assumes a mature role in the family, taking care of her younger siblings and doing household chores while her parents work long hours.

Annawilda is Avey and Jerome's middle daughter. She is highly intelligent and spirited, known for throwing occasional tantrums during her childhood years.