Amari is a twelve-year-old Black girl from the Rosewood housing projects who attends the prestigious Jefferson Academy on a scholarship. After receiving a posthumous delivery from her missing older brother, she enters the Bureau of Supernatural Affairs summer training camp. There, she discovers she is an illegal born magician with a 100% magic capacity. She relies on her resourcefulness and compassion to prove her worth to a prejudiced supernatural society.

Dylan is a Junior Agent trainee at the Bureau and the twin brother of Lara Van Helsing. Unlike his family members, he treats Amari with respect and eventually partners with her during training camp. He secretly possesses magic himself, specifically the ability to manipulate technology, a trait he keeps strictly hidden from his prejudiced father.

Moreau is an ancient, highly dangerous magician and one half of the infamous Night Brothers duo. He is currently held in custody at Blackstone Prison by the Bureau. He previously waged war on the supernatural world to pursue immortality, cementing the widespread prejudice against all magicians.

Elsie is a weredragon who has not yet experienced her first shift. She is the last known member of her species and struggles with loneliness because other students fear her. As Amari's roommate, she uses her gifted inventiveness and ability to read emotional auras to support her new friend.

Lara is Dylan's twin sister and a Junior Agent trainee who frequently harasses Amari. She leverages her wealthy, legacy family status to demean students from lesser financial backgrounds. She holds deep-seated anger regarding the disappearance of her older sister, Maria.

Quinton is Amari's older brother and a revered Special Agent at the Bureau. He possesses a super-genius aptitude that allowed him to master any skill upon first observation. His sudden disappearance leaves his family desperate for answers and drives Amari to enter the supernatural world.

Maria is Quinton's partner at the Bureau, forming the highly successful investigative team known as VanQuish. She disappeared under mysterious circumstances at the same time as Quinton. As the eldest Van Helsing sibling, her absence deeply affects her powerful family.

Agent Magnus is a bulky, bearded Bureau agent who frequently wears a cowboy hat and speaks with a Southern accent. He served as a mentor and friend to Quinton. He acts as Amari's primary advocate within the Bureau, defending her against hostile leadership.

Agent Fiona is Magnus's partner in the Bureau. She possesses the supernatural ability to read a person's true intentions by looking deep into their eyes. She pushes Amari to find her courage during Junior Agent training exercises.

Director Van Helsing is the head of the Department of Supernatural Investigations. He holds extreme prejudice against magicians and immediately attempts to expel Amari from the Bureau upon learning her identity. He is a prominent figure from a wealthy legacy family.

Mama is Amari and Quinton's mother. She works long shifts at a hospital to support her family while living in the Rosewood housing projects. She maintains unwavering faith in Amari's academic potential and struggles deeply with Quinton's disappearance.

Jayden is a boy from Amari's neighborhood who previously received after-school tutoring from Quinton. Following Quinton's disappearance, he loses interest in his education and begins associating with a local gang to make money, reflecting the limited opportunities in their area.

Madame Violet is a famous illusionist and the author of a spell book Amari studies. She attends the annual All-Souls Festival, where she trades supernatural knowledge and cryptic warnings in exchange for personal secrets.

Vladimir is a historical figure in the supernatural world and the second member of the infamous Night Brothers. He partnered with Moreau in ancient times to terrorize the supernatural population in pursuit of immortality.