Annie is a 50-year-old marketing executive at Opera Weekly who attends the Boy Talk cruise as a proxy for her injured sister. Recently divorced from her husband, Chris, and reeling from a sudden workplace demotion, she boards the American Fantasy feeling cynical and detached. She initially views the devoted fans as strange outsiders but slowly lets down her guard to experience the communal joy of the event.

Keith is a reluctant vocalist for the 1980s boy band Boy Talk. Now in his fifties, he dreads the annual fan cruise, which drains his energy and triggers severe anxiety and physical illness. Trapped in a cold marriage to his wife, Steffani, and pressured by his ambitious brother, Shawn, Keith struggles to maintain the eternally youthful "dreamboat" persona expected by the adoring crowds.

Sarah is the overworked production manager for JackRabbit Productions, responsible for ensuring the Boy Talk cruise runs smoothly. Efficient and outwardly cheerful, she expertly manages the massive logistical challenges, the screaming fans, and the band's delicate egos. Privately, she nurses a broken heart after her girlfriend left her, throwing herself into back-to-back sailings to avoid returning to an empty home.

Shawn is Keith's older brother and the de facto leader of Boy Talk. Charismatic and fiercely ambitious, he views the band primarily as a corporate brand and a scalable business. He performs an exaggerated version of brotherly camaraderie for the fans while privately prioritizing financial expansion over Keith's mental well-being and the authority of their longtime manager.

Corey is the most commercially successful member of Boy Talk, having achieved solo fame as a film actor. He projects a bad-boy swagger and looks down on the cruise, viewing the nostalgic event as beneath his artistic capabilities. Despite his arrogance, he relies on the intense devotion of the Talkers to rehabilitate his public image following a string of recent scandals.

The Talkers are the deeply devoted, predominantly middle-aged female fanbase of Boy Talk. Functioning as a massive collective on the cruise, they organize their lives around the band, creating custom costumes, coordinating photo groups, and providing the unending adoration that fuels the ship's economy. Their shared obsession provides them with a vital sense of community, though the group also harbors internal jealousies and rivalries.

Maira is a veteran Talker from New Jersey and Annie's assigned cabin roommate. Having attended every single Boy Talk cruise, she operates as a seasoned guide to the intricate social hierarchies and unwritten rules of the fandom. She is fiercely protective of her idealized space and unapologetic in her devotion, but she carries a defensive edge due to past conflicts within the community.

Scotty is the cheerful, openly gay member of Boy Talk, known as the social butterfly of the group. He acts as a peacemaker among his volatile bandmates, maintaining a sweet and easygoing demeanor throughout the exhausting schedule. He relies heavily on the cruise for financial stability, having previously involved his fans in a controversial multilevel-marketing business.

Terrence is the eccentric "oddball" member of Boy Talk who now hosts a television show about aliens. Seemingly detached from the intense pressures that consume his bandmates, he is primarily focused on enjoying the cruise with his much younger wife, Kelsey. He remains comfortably on the periphery of the group's internal drama, largely ignoring the exhausting demands of the fans.

Bobby is the longtime, pragmatic manager of Boy Talk who operates as a grounding force for the group. He deeply understands the band members' individual anxieties and works tirelessly to keep them functioning year after year. His traditional approach to management is increasingly threatened by Shawn's aggressive new corporate strategies and the sudden arrival of an executive coach.

Jonathan is a tall, bearded executive coach and holistic adviser recently hired by Shawn Fiore. He speaks in a calculated blend of spiritual affirmations and corporate buzzwords, framing ambitious business expansion as a path to personal actualization. His sudden, unexplained presence on the ship deeply unsettles both Keith and Bobby.

Tyler is a recent college dropout and the nephew of Sarah's boss at JackRabbit Productions. Assigned as Sarah's temporary assistant for the four-day cruise, he is incompetent, easily distracted, and wholly unprepared for the intense logistical demands of the event, adding significantly to Sarah's heavy workload.

Lexie is Sarah's ex-girlfriend who recently ended their relationship to date a younger woman. Her departure, along with her decision to take their shared cat, leaves Sarah feeling unmoored, heartbroken, and reluctant to return to her empty apartment on land.

Greg is a recurring male passenger on the Boy Talk cruises who capitalizes on the highly charged, female-dominated environment. Known among veteran fans as a serial hookup artist who still lives with his parents, he strikes up a sudden, intense flirtation with Annie during the trip.

Theresa is a bitter and hostile Talker who holds a deep grudge against Maira over financial losses incurred through Scotty's SkinSentials multilevel-marketing scheme. Her constant presence on the ship brings underlying community tensions to the surface, proving that the fandom is not immune to real-world drama.

Chris is Annie's emotionally unavailable ex-husband. Following their recent divorce, he is now dating a woman seventeen years his junior, a fact that deeply contributes to Annie's profound sense of invisibility, frustration, and midlife insecurity as she boards the cruise alone.

Katherine is Annie's sister and a lifelong, devoted Talker. She originally booked the American Fantasy cruise as a 45th birthday present for herself, but when a broken leg forces her to cancel, she sends a reluctant Annie in her place to experience the boy-band magic.

Steffani is Keith's wife back home, who views the boy-band fans with open disdain, referring to them as "freaks." Her marriage to Keith has slowly deteriorated into a cold, silent arrangement characterized by separate bedrooms and profound emotional distance.

Geoff is Annie's boss at Opera Weekly. While Annie is boarding the cruise, he sends a devastating email effectively demoting her in favor of a much younger colleague, exacerbating Annie's midlife crisis and pushing her to reconsider her career path entirely.

Kelsey is Terrence Campbell's much younger, newlywed wife. She accompanies him on the cruise, where the two remain highly affectionate, focused entirely on each other, and comfortably isolated from the rest of the band's professional stress and internal drama.

Kayla is a former intern at Opera Weekly, barely older than Annie's daughter. Because of her strong social media presence, she is suddenly installed as Annie's new superior, a humiliating corporate maneuver that forces Annie to reevaluate her professional worth.

Plum is the younger woman for whom Lexie left Sarah. Her sudden presence in Lexie's life, heavily documented on social media, serves as a constant source of pain for Sarah as she tries to manage the exhausting cruise.

Claudia is Annie's college-aged daughter. Her departure from the family home leaves Annie with an empty nest, compounding the profound sense of aimlessness and transitional anxiety Annie feels at the start of the cruise.

Madison is Keith and Steffani's daughter. Rather than supporting her father's career, she uses her large social media following to publicly mock Boy Talk, adding another layer of alienation to Keith's complicated relationship with his fame.

DJ Pancake is the ship's resident disc jockey, responsible for managing the music and technical cues for the various themed parties and events. He frequently draws the ire of the exacting Shawn Fiore for minor technical errors during the band's carefully choreographed appearances.