Lucie is a 19-year-old Chinese American biology major at Brown University who struggles to balance her artistic passions with her elite New York family's strict social rules. Following her father's death when she was a child, she developed a tightly controlled public persona to prove her worth to her demanding paternal grandmother. She frequently subdues her own desires to avoid judgment from her homogenous, upper-crust social circle. Her carefully constructed facade begins to crack during a luxurious trip to Italy, forcing her to confront what she truly wants.

George is a wealthy wedding guest from Hong Kong who also spends time in Australia and Hawaii. Unlike the rest of the high-society attendees, he dresses casually in denim shorts and Birkenstocks, disregarding elite social codes. He studies environmental issues at UC Berkeley and maintains an authentic, observant demeanor that confounds the tightly-laced guests around him. He refuses to tailor his behavior or appearance to meet the superficial expectations of the upper crust.

Cecil is a wealthy, renowned bachelor who lives in Greenwich Village and drives a 1973 Ferrari. He relies heavily on social media validation and public spectacles to cement his status as one of Esquire's "Most Desired Dudes." He treats his relationships as extensions of his personal brand, valuing aesthetic perfection and social clout over genuine emotional intimacy.

Charlotte is Lucie's single, older cousin who acts as her chaperone during the trip to Italy. Dubbed "Madam Buzzkill" by her younger relatives, she embodies the elitist attitudes of her affluent background. She constantly complains about minor inconveniences, scrutinizes other guests' outfits, and rigorously polices the behaviors of those around her to protect the prestigious Churchill family name.

Rosemary is George's wealthy mother from Hong Kong. Friendly and generous, she casually offers to give up her room to appease Charlotte's complaints. Her garish displays of wealth and relaxed manners make her a frequent target of high-society gossip, though she remains largely unbothered by the elitist judgments of the other wedding guests.

Marian is Lucie and Freddie's mother, a third-generation Asian American who married into the prominent Churchill family. She is deeply concerned with her children's adherence to the family's elite expectations and sacrifices her own cultural traditions to ensure they fit in with the upper crust.

Freddie is Lucie's brother, who embodies the quintessential WASP persona expected of the Churchill family. He shares a quiet camaraderie with his sister and navigates the elite social circles of New York and the Hamptons with an ease that Lucie often struggles to emulate.

Isabel is Lucie's close friend whose glamorous lifestyle involves a 408-guest wedding in Italy. She feels protective over Lucie due to the early loss of Lucie's father, and she provides the luxurious setting that forces Lucie out of her strict routine.

Consuelo is Lucie's paternal grandmother and the formidable matriarch of the Churchill family. She lives in a renowned Fifth Avenue apartment and subjected Lucie to rigorous etiquette and posture lessons throughout her childhood, instilling a deep fear of social missteps.

Olivia is a wedding guest in Capri who works in the entertainment industry in Los Angeles. She carries a Leica camera and absorbs the gossip circulating among the elite socialites, later turning her observations into the feature film *Glimpses of the Moon*.

Auden is a yoga instructor, life coach, and motivational speaker who attends the Capri wedding. He is a fixture in the wealthy community, teaching puppy yoga classes in East Hampton, and takes a genuine interest in Lucie's painting skills.

Paloma is one of the wealthy Ortiz sisters attending Isabel's wedding. She is nosy and casually insensitive, frequently pestering Lucie about her Chinese heritage and appearance under the guise of polite conversation.

Mercedes is the other Ortiz sister in Capri. Like Paloma, she represents the intrusive nature of the elite circle, demanding to know the specifics of Lucie's family history and making her feel like an exotic outsider.

Mordecai is a wealthy aristocrat who acts as a tour guide for the wedding guests in Italy. He is deeply entrenched in old money traditions and subjects Lucie to highly inappropriate inquisitions about her racial identity during a dinner party.

Renée is Cecil's mother, who is Jewish and partially Hispanic. Her background has historically caused friction with New York's old-money real estate boards, highlighting the exclusionary prejudices that dictate the upper crust's social circles.

Cornelia is an animal rights activist and high-society figure who attends Marian's gala in Southampton. Her outsider perspective allows her to see through the polite charades of the Churchill family, prompting her to call out Lucie's self-deception.