Wyatt is characterized by his analytical mind and social awkwardness, making him an outcast with an intense focus on the Hollywood Killer case. As Willa's logical counterpart and eventual ally, his skepticism initially clashes with her experiences.

Reed is introduced as the charming assistant of Willa’s stepfather, showcasing an outwardly friendly demeanor. His true role and intentions remain shrouded, creating a sense of intrigue around his character.

Marnie, Willa's first friend at Langhorn Academy, displays a confident and social exterior. Her actions often revolve around seeking attention and social status within the school environment.

Jonathan, Willa's new stepfather, is a wealthy film director whose attempts to connect with Willa are initially met with suspicion. His passion for classic films is notable, and his character plays an important role in the family dynamics.

Willa’s mother, Joanna, is supportive and deeply concerned for her daughter, though she struggles to navigate the challenges that their new Hollywood lifestyle presents. Her relationship with Willa is marked by a desire to penetrate the emotional walls that Willa has erected.

Paige is a supernatural presence who provides crucial guidance to Willa throughout her journey. Her ghostly interventions are central to Willa's unraveling of the mystery surrounding a series of events linked to the past.

Leyta is a renowned psychic who assists Willa in understanding her paranormal experiences. Her role helps Willa differentiate between various spiritual influences and focus on pertinent information.