Alex is the 21-year-old son of the first female president of the United States. He aims for a future career in politics to make a positive impact on the country. Half-Mexican and highly gregarious, he handles the immense pressure of his public position by holding tight to his Texas roots. His intense rivalry with Prince Henry leads to a massive public relations disaster involving a $75,000 wedding cake, forcing him to spend time with his nemesis and reconsider his own identity.

Henry is the 23-year-old grandson of the Queen of England. He appears bland and unfeeling to the public, projecting a flawless royal image for the cameras. In reality, he feels trapped by the heavy expectations placed upon him as a potential heir to the throne. He is deeply guarded and struggles with the pressure to conceal his sexual identity from his highly traditional family.

Ellen is the first female president of the United States. She balances the massive demands of her political office with her responsibilities as a mother. Hailing from a working-class Texas background, she is tough and strategic in the political arena. She maintains a strong foundation of maternal support for her children, even when their actions complicate her political standing.

Richards is a senator from Utah and the major political threat to the Claremont administration. Coming from old money, he presents a highly traditional, conservative public persona. He relies on aggressive campaign tactics to appeal to his voter base.

Queen Mary is the reigning monarch of Great Britain and Henry's grandmother. She values tradition, public image, and strict decorum above all else. She demands that her family adhere to rigid public personas to preserve the crown's legacy, viewing any deviation as a threat to the monarchy.

Oscar is a senator from California and the ex-husband of Ellen Claremont. He maintains a close, supportive relationship with his children. His interactions with Ellen frequently result in loud arguments, though he still considers her the love of his life. He offers his son grounded advice regarding both politics and difficult personal matters.

June is Alex's older sister and an aspiring journalist. She feels frustrated by the strict limitations placed on her writing career due to her mother's political position. She acts as a grounded confidante for Alex and helps manage his public image. She works closely with Nora to control the media narrative surrounding the First Family.

Nora is the vice-president's granddaughter. She is openly bisexual, highly analytical, and heavily skilled with data analytics. She uses her intelligence to help Alex sort out his personal crises and identify his own sexual orientation. She tracks political polling and public opinion to protect the administration from PR disasters.

Zahra is Ellen Claremont's deputy chief of staff. She possesses a gruff, tough-as-nails exterior and handles the logistical and public relations challenges of the First Family. She enforces discipline strictly, manages the social calendars of the younger generation, and works tirelessly to secure Ellen's reelection.

Cash is a Secret Service agent assigned to the First Family. He functions as a discrete protector for Alex, accompanying him to foreign countries and managing physical security. He shows significant loyalty to the First Son by occasionally acting as a mother hen during hangovers and travel.

Amy is a Secret Service agent tasked with protecting the First Family. She works alongside Cash to ensure Alex's safety during his increasingly complicated social schedule. She turns a blind eye to private matters while maintaining strict physical security perimeters.

Rafael is an openly gay senator from Colorado. He serves as a trusted political mentor for Alex, demonstrating how one can live authentically while holding public office. He maintains a complex position in the political arena, leveraging his connections and history to influence the presidential race.

Catherine is Henry's mother. She suffered a devastating depression after the early death of her husband, actor Arthur Fox. Her prolonged withdrawal left her emotionally distant from her children during their formative years, though she slowly begins to reengage with her family as crises mount.

Arthur Fox was a dashing movie star famous for his acting roles, notably playing James Bond. His unexpected death from cancer profoundly traumatized his family. His absence casts a long shadow over his children's lives and their development.

Prince Philip is Henry's eldest sibling. He adheres strictly to the traditional role of a British royal. He is highly protective of the family's legacy and frequently judges his younger brother's behavior, expecting his siblings to prioritize the bloodline over personal happiness.

Martha is the wife of Prince Philip. She aligns perfectly with the heavy expectations placed upon members of the British royal family. She maintains a pristine public image and supports her husband's conservative views on royal duty.

Princess Beatrice is Henry's older sister. She has a history of struggling with drug addiction following her father's death but now sponsors addiction recovery charities. She functions as an empathetic, highly supportive sibling to Henry as he navigates the restrictions of their family.

Shaan is Henry's soft-spoken and highly discreet equerry. He coordinates the prince's public appearances and private movements. He maintains an extremely professional demeanor while managing the complex logistics of royal life and international communications.

Percy "Pez" Okonjo is a wealthy heir to a biomedical company in Nigeria and Henry's best friend. He brings a bright, uninhibited energy to Henry's heavily structured world. He actively encourages the prince to seek personal happiness and manages his family's nonprofit foundations.