The mirror twin of Donald Holmquist and initially a major suspect in the serial murders. He experiences violent visions, which implicate him in the crimes early on, but these visions eventually help elucidate the true nature of the crimes.

The primary antagonist of the novel, who is linked to violent crimes. He is David Claremont’s mirror twin and uses the pseudonym "Jasper."

The Weaversville County Sheriff and Christine Prusik’s primary love interest. He is portrayed as a man of integrity and character, struggling with emotional wounds that complicate his personal relationships.

Christine Prusik’s supervisor at the FBI and former love interest. He struggles with emotional honesty and often prioritizes appearances over skill, creating professional obstacles for Prusik.

An FBI investigator and Christine Prusik’s professional rival, he embodies the gender bias Prusik faces in her career. He often acts against her due to his misogynistic attitudes and ego-driven behavior.