Lexi is a 29-year-old resident doctor living in Hobart, Tasmania. She has curly black hair and fled her royal life a decade ago to pursue independence away from public scrutiny. The sudden tragedy involving her father and twin brother places her third in line for the throne, forcing her to return to London. She evaluates her medical career against the heavy expectations of the British monarchy.

Louis is Lexi's charismatic, athletic twin brother and the original heir to the British throne. He spent his life managing the immense pressures of his royal legacy, attempting to maintain the ideal public image while carrying private burdens. His sudden death in a skiing avalanche acts as the catalyst for Lexi's return to England.

Amira is Louis's wife and Lexi's former best friend from their time at Astley College. As a woman from a wealthy British-Indian family, she constantly faces racist exclusion and intense criticism from the press and the royal institution. She struggles to secure her place within a family that treats her as an outsider, especially after becoming a royal widow.

Queen Eleanor is the reigning monarch of Britain and the stoic matriarch of the Villiers family. She views herself as the mother of the nation, valuing tradition, stability, and public duty above personal desires. Following the avalanche, she pushes Lexi to accept her new role in the line of succession.

Prince Richard is Lexi's uncle and Queen Eleanor's second son. He is a selfish, aging royal who constantly seeks more power and influence for himself and his daughters. He uses the press and manipulative tactics to undermine his family members and secure his financial and social standing.

Jack is an Australian vintner and Lexi's close friend. He provided Lexi with a secure place to live at his family's vineyard when she needed a haven. He offers Lexi a sense of home and normalcy, grounding her life outside the royal sphere.

Prince Frederick is Lexi and Louis's father, and the original heir to the throne. He lived a life heavily constrained by royal expectations, struggling with his public role. His long-term devotion to Annabelle complicated his first marriage to Isla, creating lasting rifts in his family.

Princess Isla is Lexi and Louis's late mother. She struggled with the immense pressures of royal life and the public collapse of her marriage, ultimately dying tragically when her twins were seventeen. Her memory heavily influences Lexi's fears and decisions.

Kris is Amira's brother and Louis's closest friend since their time as suitemates at Astley College. He comes from a wealthy tech family and shares a tight, fiercely loyal bond with Louis. He is caught in the tragic avalanche in Switzerland alongside Louis and Frederick.

Finn is a medical resident and one of Lexi's best friends in Australia. He is a supportive presence who helps Lexi manage her professional and personal life away from the crown. He frequently spends time with Lexi and Jack in Hobart.

Jenny is the British Prime Minister, described as a woman from Essex with union backing. She shows unexpected empathy toward Lexi upon her arrival in London. She encourages Lexi to use her royal position to advocate for modern reforms, such as supporting the National Health Service.

Stewart is the Queen's private secretary. He is a rigid enforcer of royal protocol who orchestrates Lexi's immediate return to England. He manages the family's logistical crises and prioritizes the institution's image over individual comfort.

Mary is a young royal aide who runs social media for Frederick and Annabelle before transitioning to work closely with Lexi. She attempts to guide Lexi through the treacherous optics of palace life, offering advice on public relations and royal survival.

Vikki is Amira and Kris's mother, a former flight attendant who married into a wealthy tech family. She fiercely protects her children and warns Lexi about the treachery within the royal family. She serves as a maternal figure to Lexi during times of crisis.

Annabelle is Frederick's second wife and Lexi's stepmother. Her long-standing connection with Frederick caused significant tension during his marriage to Isla. She harbors a cynical view of the palace institution and warns Lexi about the reality of royal life.

Colin is the Earl of Amherst and heir to a massive fortune. He is a childhood acquaintance of Lexi's who smoothly maneuvers through high society. He views himself as an ideal, traditional suitor for a royal and actively pursues Lexi's attention.

Demelza is Prince Richard's daughter and Lexi's cousin. She covets royal influence and aligns with her father's manipulative approach to palace politics. She frequently snubs Amira, reflecting the royal family's exclusionary attitudes.

James is Princess Isla's twin brother who runs a merino wool sheep farm in Tasmania. He provides Lexi with emotional support and financial independence when she decides to escape her royal life. He acts as a grounding, protective figure from afar.

Ben is Lexi's supervisor at the hospital in Hobart and her ex-boyfriend. He broke up with her shortly before the tragedies, citing her inability to live a fully open life. He demands professional commitment from Lexi despite her personal crises.

Davide is a former private guard hired to protect Princess Isla and her children during their summer in Italy. He holds significant knowledge about the family's past and the night of Isla's tragic death.

Madhav is Amira and Kris's father, the son of a wealthy tech tycoon who retained his trust fund after marrying Vikki. He provides substantial financial resources to his family and prefers to adhere to traditional Hindu customs regarding his son's passing.

Birdie is Prince Richard's daughter and Demelza's sister. She stays close to her father and sister, participating in the family's social politics and sharing their dismissive attitude toward outsiders.