A sixteen-year-old survivor of the blood fever, Adelina is marked as a malfetto by her silver hair and a missing left eye. Abused by her cruel father and outcast by society, she harbors deep-seated bitterness and a growing, dangerous power to cast illusions. Rescued from the execution pyre, she joins the hidden world of the Dagger Society. She strives to control her frightening abilities while dealing with treacherous allegiances and a vicious blackmail threat from the Inquisition.

Violetta is Adelina’s younger sister by two years. Because she survived the blood fever without any outward physical markings, she was spared the societal prejudice faced by malfettos. Appearing flawless, she received affection and safety from their father. Despite the resulting friction between the sisters, Violetta represents Adelina's strongest tie to her family and serves as leverage for the Inquisition to control Adelina.

Known among the Young Elites as the Reaper, Enzo is the rightful prince of Kenettra whose throne was usurped when the fever marked him as a malfetto. Recognizable by his unnatural red hair and scarred hands, he manipulates fire. He leads the Dagger Society with intense determination, seeking to overthrow the current monarchy and reclaim his crown.

Known as the Messenger, Raffaele is a handsome young consort working at the Fortunata Court in Estenzia. As a Young Elite, he possesses the rare ability to sense the energy and motivations within others. He operates as a recruiter and tester for the Dagger Society. Though he steps into a mentor role for Adelina, his insight makes him highly cautious about the bitter elements of her personality.

Teren is the Lead Inquisitor of Kenettra, tasked by the crown with hunting down malfettos. He is a deeply conflicted enforcer who despises malfetto flaws and practices severe self-flagellation as penance. Devoted to Queen Giulietta, Teren employs ruthless tactics to systematically eradicate his targets, placing immense pressure on Adelina by demanding she spy for him under threat to her sister's life.

Maeve is the Crown Princess of Beldain, poised to ascend the throne of the cold northern nation in the Skylands. Calculating and fiercely independent, she commands her seven older brothers and maintains secret political interests across international borders. She acts as a distant but watchful patron, keeping a close eye on the political upheaval unfolding in Kenettra.

Giulietta is the Queen of Kenettra and Enzo's older sister. Cold and ambitious, she married a duke to secure the throne after the death of their father. She actively supports the persecution of malfettos to maintain her power, relying on the Inquisition to enforce her rule and manipulate the kingdom’s unrest to her advantage.

Dante is a member of the Dagger Society, fiercely loyal to Enzo and highly protective of their group's security. He harbors deep suspicions about Adelina from the moment she arrives, openly questioning her background and allegiances. His protective instincts make him an internal adversary for Adelina.

Known as Star Thief, Gemma is a Young Elite who manipulates the minds of animals. Despite being a marked malfetto, she belongs to a powerful noble family in the Green Quarter, which affords her temporary privileges such as riding in city races. She extends cautious friendship to Adelina.

Known as Windwalker, Lucent is an exiled Young Elite originally from the Skylands nation of Beldain. She possesses the ability to control the wind. Though initially intimidating during Adelina's testing, she eventually acts as a protective presence within the Dagger Society.

Spider is a former blacksmith apprentice who serves as one of the Young Elites in the Dagger Society. He is confrontational and quick to jealousy, particularly regarding Enzo's attention toward Adelina. He frequently taunts Adelina during her training.

Known as the Architect, Michel is a Young Elite in the Dagger Society who trains as an artist. He possesses the unique ability to unravel objects and reconstitute them elsewhere. He assists in Adelina’s training by helping her learn to paint her illusions realistically.

Adelina and Violetta's father is an opportunistic man who deeply resents Adelina's malfetto status. He treats Violetta with affection while subjecting Adelina to emotional and physical abuse, viewing her only for her potential monetary or supernatural value. His relentless cruelty shapes Adelina's bitter worldview and triggers the manifestation of her dark powers.

Tristan is the seventh older brother of Princess Maeve of Beldain. Following a tragic accident in the forest years ago, his demeanor shifted drastically. He lives an isolated life in the shadows, bound to his sister's commands with an unnaturally ruthless disposition.

A former duke who became the King of Kenettra through his marriage to Giulietta. He frequently dismisses the unrest and rising taxes plaguing his citizens, relying heavily on the Inquisition to maintain order while remaining ignorant of the true plots unfolding within his palace.

Daphne is an apothecary in training and Enzo's former fiancée. Her past with Enzo creates a barrier in his developing connection with Adelina, serving as a source of ongoing grief for the exiled prince.