Born to a middle-class Irish immigrant family, Leah is a 35-year-old woman working an unfulfilling administrative job at an organization that distributes lottery money to charities. Despite her stable life and marriage, she secretly wrestles with existential aimlessness and actively resists her husband's intense desire to start a family by covertly taking birth control. Her deep empathy often leaves her vulnerable to the chaotic elements of her neighborhood.

Raised in a working-class Jamaican immigrant family, she excels academically and reinvents herself at university by changing her given name from Keisha to Natalie. She builds a highly successful career as a lawyer, marries into wealth, and achieves traditional markers of success. Underneath her professional polish, she struggles with intense boredom and feelings of alienation from her roots.

A French Algerian immigrant working as a hairdresser, Michel is fiercely optimistic and driven to climb the socio-economic ladder. He engages in currency trading using his wife's inheritance and approaches life with a militaristic determination to leave their modest apartment and start a family.

Born in Italy to an Italian mother and Trinidadian father, Frank comes from a relatively affluent background and works as an investment banker. He seamlessly assimilates into successful adult domesticity and fatherhood, standing in sharp contrast to his wife's hidden dissatisfaction.

A 32-year-old part-time film industry worker who is emerging from a period of drug addiction and aimlessness. Motivated by his love for his optimistic girlfriend, he actively works to shed the destructive elements of his past and build a stable, meaningful life.

A destitute drug addict and former classmate from Brayton school who scams Leah out of thirty pounds. Her desperation and chaotic lifestyle inject sudden drama into Leah's stagnant routine, causing her to become an object of deep fixation for Leah.

A former schoolmate of Leah and Keisha who has fallen into the criminal underbelly of London as a drug dealer. Disillusioned and feeling permanently marked by systemic judgment since childhood, he serves as a living reminder of the neighborhood's darker realities.

Felix's cheerful, ambitious girlfriend who collects Disney princess figurines. Her sunny disposition and forward-looking attitude provide the exact motivation Felix needs to turn his life around and pursue sobriety.

Felix's volatile, drug-addicted lover who lives in a decrepit apartment despite being related to the earl who owns the building. She is entirely content with her chaotic existence and openly mocks attempts at bourgeois respectability.

Leah's pragmatic Irish immigrant mother who studies to become a radiographer. She is deeply critical of Leah's life choices and quick to pass judgment on her son-in-law's lack of traditional stability.

Keisha's working-class Jamaican mother. She attempts to heavily control her daughter's life, dictating her early romantic pairings and educational paths to keep her focused on traditional success.

A Caribbean youth from Keisha's neighborhood who becomes her first serious boyfriend. They attend university in Bristol together, but he is eventually discarded as Keisha fundamentally reinvents her identity.

Felix's Jamaican immigrant father. He reminisces with his son over photographs of the Garvey House project, providing a grounding link to Felix's heritage and the city's changing history.

A marketer who outwardly appears successful but internally suffers from modern intellectual ennui and feelings of inadequacy regarding his parents' expectations.

A pragmatic lawyer who advises Natalie to avoid specific types of legal work to prevent being stereotyped, shaping Natalie's ruthless approach to her legal career.

Leah's relaxed stoner neighbor who encourages her to appreciate simple natural beauty like sunsets, serving as a rare character devoid of intense urban anxiety.

Keisha's father, who works as a plumber. He introduces the girls to small luxuries like fast food, contrasting with the stricter environment enforced by his wife.

Leah's father, who maintains a quiet presence in her childhood memories. His eventual inheritance provides the capital for Michel's currency trading schemes.

Frank's mother, an Italian woman who represents the higher social class that Frank marries into. She provides crucial funding when Natalie faces financial precariousness early in her career.

A defense attorney who abuses his position of power by molesting Natalie, an incident that forces her to seek out tougher mentorship.

A student at Bristol University who shares a brief romantic encounter with Leah while Keisha is fundamentally changing her own identity.