Dr. Kay Scarpetta is the Chief Medical Examiner in Richmond, Virginia, and the first woman to hold the position. She is a highly educated, meticulous professional who relies on cutting-edge forensic techniques, such as laser identification and computer databases, to solve crimes. Despite her competence, she faces isolation and misogyny from the local political establishment, forcing her to constantly defend her scientific methods against those who want to use her as a scapegoat for investigative failures.

A tough, working-class urban police detective originally from New York City who is investigating the string of murders in Richmond. Marino relies heavily on his street smarts, gut intuition, and traditional police work rather than scientific analysis. He initially displays a gruff, skeptical attitude toward Scarpetta and holds prejudices against highly educated, white-collar professionals.

The Commonwealth's attorney in Richmond, representing the public prosecutor's office. He is a handsome, successful lawyer and an entrenched member of the city's male-dominated political establishment. Widowed a year prior, he pursues a personal relationship with Scarpetta while maintaining a calculated, sometimes icy professional distance when around other city officials.

An award-winning investigative crime reporter for the local Richmond newspaper. She is tenacious and aggressive in her pursuit of information regarding the serial murders, frequently clashing with law enforcement. Her relentless reporting makes her a formidable presence who refuses to be intimidated by the city's political establishment.

Kay Scarpetta's ten-year-old niece and a highly intelligent child prodigy with a profound aptitude for computers. She is temporarily staying in Richmond because her mother frequently neglects her. Deeply sensitive to feeling unwanted, she worries intensely about her aunt's safety amidst the active serial murder investigation.

The County Commissioner who oversees the medical examiner's office. He is a powerful figure in the local political network who harbors a grudge against Scarpetta after she publicly contradicted his findings in a past case. He constantly looks for opportunities to undermine her authority and control the flow of information to the press.

An FBI criminal profiler assisting with the Richmond serial murder case. He brings a psychological perspective to the investigation, using behavioral science and crime scene details to help Scarpetta and Marino anticipate the killer's background and next moves.

Kay Scarpetta's sister and Lucy's mother. She is a children's book author who frequently neglects her daughter in favor of dating, eventually eloping to Nevada and leaving Lucy under Scarpetta's long-term care.

A journalism professor and the sister of reporter Abby Turnbull. She lives with Abby and becomes a victim in the string of serial murders, significantly raising the personal stakes for the investigative team.

A thirty-year-old doctor and the fourth victim in the string of Richmond murders. Her brutal death is the catalyst for the novel's primary investigation, drawing Scarpetta deeper into the pattern of the killings.

Lori Petersen's husband, a literature doctoral student and actor at the University of Virginia. Because he discovered the body and has an academic background that Marino finds suspicious, he quickly becomes the prime suspect in the police investigation.

A forensic psychiatrist whom Scarpetta consults regarding the psychological motivations of the serial killer. He serves as a critical sounding board for Scarpetta as she attempts to decipher the murderer's need for media attention.

The fingerprint technician at the medical examiner's office. He assists Scarpetta in the tedious, methodical work of processing physical evidence and utilizing new automated fingerprint identification systems.

Scarpetta's lab assistant at the medical examiner's office. He helps process evidence but becomes a target of Marino's workplace prejudice and Scarpetta's own creeping paranoia regarding the security of her lab.

The chief serologist at the medical examiner's lab. She is responsible for analyzing biological evidence and providing crucial updates on the DNA testing that connects the serial murders.

The computer analyst at the medical examiner's lab. She alerts Scarpetta to a data breach concerning Lori Petersen's files, raising immediate alarms about internal sabotage and press leaks.

The director of public safety in Richmond. He operates alongside Amburgey and Boltz as part of the local political network attempting to restrict Scarpetta's authority during the high-profile investigation.

The only Black victim among the serial murders. Scarpetta's investigation into her background and injuries provides critical clues regarding the killer's selection process.

Cecile Tyler's sister. Her brief phone conversation with Scarpetta leads the medical examiner to realize that the killer identifies his victims by their voices.

The babysitter hired by Scarpetta to look after her niece, Lucy, while the medical examiner handles late-night calls and long working hours.

The white best friend of murder victim Cecile Tyler. She discovered Cecile's body, prompting Marino to initially theorize about the killer's victim selection.