Piglet is a junior cookbook editor at Fork House who is ninety-eight days away from her wedding. She harbors an intense desire to build an upper-middle-class life, carefully curating her food choices and home decor to distance herself from her working-class Derby upbringing. She faces deep-seated body image issues and feels intense pressure to maintain a perfect appearance as her wedding day rapidly approaches.

Kit is Piglet's wealthy fiancé who comes from an affluent Oxford background. He provided most of the funds for their new home, and his refined, comfortable lifestyle is exactly what Piglet aspires to join. He is somewhat clueless about cooking etiquette and occasionally fails to read Piglet's emotional state, carrying a secret that threatens their upcoming marriage.

Margot is Piglet's childhood best friend, currently pregnant and preparing for a massive life transition. She is confident and outspoken, offering a sharp contrast to Piglet's anxiety about appearances. Her impending motherhood shifts her priorities, inadvertently creating distance between her and Piglet.

Cecelia is Kit's mother, an upper-middle-class Oxford resident who embodies the polished, sophisticated lifestyle Piglet aims to emulate. She possesses a tight, toned physical appearance and a condescending edge masked by politeness. Her fierce loyalty to her son dictates her interactions with everyone around him.

Franny is Piglet's younger, noticeably thin sister. She frequently asks Piglet for financial help due to her boyfriend's failing business. Growing up, Franny struggled with severe food anxieties, an issue that heavily influenced Piglet's own relationship with eating and body image.

John is Piglet's working-class father from Derby. He prefers beer to fancy wine and fast-casual dining over elaborate meals. He originated Piglet's nickname after a childhood incident involving leftover cake, completely unaware of the deep shame the moniker causes his daughter.

Linda is Piglet's mother, a practical woman from Derby who relies on simple, economical cooking methods. She frequently feels overwhelmed or judged in the affluent environments Piglet now inhabits, though she remains proud of her daughter's career.

Sasha is Margot's wife, a supportive partner who is eagerly preparing for the birth of their baby. She offers a stabilizing presence for Margot and interacts politely with Piglet, though her focus remains entirely on her growing family.

Darren is Franny's boyfriend. He recently lost his business, causing severe financial strain for him and Franny, which prompts them to quietly seek loans from Piglet.

Sandra is Piglet's boss at Fork House publishing. She recognizes Piglet's talent as a junior editor and encourages her to apply for a promotion, offering compassionate leeway as wedding stress mounts.

Seb is a friend of Kit and Piglet. He is newly engaged to Sophie and forms part of the couple's primary social circle in Oxford.

Sophie is Seb's fiancé. During dinner parties, she frequently comments on the heavy, caloric nature of Piglet's cooking, casually triggering Piglet's severe insecurities.

Richard is Kit's father. He shares his wife Cecelia's upper-class Oxford lifestyle and financially supported Kit's home purchase, bringing quiet judgment into Piglet's home.

Allegra Joy owns the bridal shop where Piglet purchased her gown. When Piglet's dress barely fits, she bluntly suggests fasting, escalating Piglet's bodily anxiety.

Toni is a coworker of Piglet at Fork House who tries to include Piglet in office lunches, largely unaware of Piglet's internal struggles.

Natalie is a pregnant coworker at Fork House whose impending maternity leave inadvertently makes Piglet feel her own wedding is less significant.

Madeline is the wedding photographer. She quickly notices the tension between the couple on their wedding day and tries to compensate by capturing details rather than faces.