Sara is a 21-year-old woman from the impoverished town of Silva who travels to the capital to become King Michael's betrothed. Motivated by the execution of her father, a duke who pleaded for aid from the crown, she hides her hatred behind a mask of polite court etiquette. She actively scopes out the castle and staff, searching for vulnerabilities to exploit in her plot to assassinate the king.

Tristan is the younger brother of King Michael, easily recognized by a prominent facial scar given to him by Michael during their childhood. Bitter over years of abuse and his father's suspicious death, he operates from the Elephant Bones Tavern, gathering rebels to overthrow the current regime. He projects a cold, ruthless exterior but occasionally shows protective instincts toward society's outcasts.

Michael is the arrogant ruler of Gloria Terra who took the throne after his father passed away. He bullied Tristan mercilessly throughout their youth and continues to treat him with open contempt. He seeks to solidify his political standing by marrying Sara, expecting total obedience and adoration from his subjects while ignoring their poverty.

Raf is Sara's calculating uncle who orchestrates her betrothal to King Michael. He claims to share Sara's desire for justice following the execution of her father, pushing her to infiltrate the castle and act as an assassin. He views political maneuvering as a necessary game and expects strict compliance from his niece.

Simon is a ten-year-old boy living in the castle who frequently wanders the hidden underground passages. Because he looks different from the rest of the court, other children frequently bully him. He seeks out Tristan's company, finding a rare source of comfort and protection in the scarred prince.

Xander is Sara's cousin and Uncle Raf's son, currently positioned as a trusted advisor to King Michael. He acts as the intermediary between Sara's family in Silva and the royal court in Saxum, frequently dictating how Sara should behave to keep their plot secure.

Sheina is Sara's personal maid and trusted friend from Silva. She accompanies Sara to the capital but remains unaware of the violent purpose behind the betrothal. As she settles into the castle, she begins exploring her own connections and romances among the court staff and soldiers.

Edward is a general in King Michael's military who secretly maintains a close allegiance to Prince Tristan. He is one of the few people who speaks frankly to the volatile prince, though he must carefully manage Tristan's temper and cruel streaks.

Gertrude is the mother of Michael and Tristan, and the former queen of Gloria Terra. She maintains a highly contentious relationship with Tristan, who resents her for failing to protect him from Michael's childhood abuse. She expects deference from those around her and sharply judges newcomers.

Marisol is one of Sara's ladies-in-waiting at the castle. She focuses heavily on court etiquette and attempts to manage Sara's schedule and behavior, often clashing with Sara's desire for independence.

Ophelia is another of Sara's ladies-in-waiting. She assists Sara with daily preparations and helps her meet the complex social expectations of being the king's betrothed.

Paul is a cook in the royal castle who treats Sara with casual friendliness. He is familiar with the castle's secret tunnels and maintains a quiet connection to the local rebel movement.

Timothy is a royal guard assigned to protect Sara. Initially ordered to remain strictly silent around her, he gradually thaws in response to her persistent attempts at conversation.

Kara is a scullery maid working in the castle and the protective mother of Simon. She holds a low opinion of Tristan and tries to keep her son away from the prince's influence, fearing the danger that royal attention brings.

Belinda is a defiant rebel who publicly challenges King Michael's authority. Following her dramatic display at the castle, she finds refuge with Tristan's underground movement at the Elephant Bones Tavern.