A Voice in the Dark Characters

An FBI analyst specializing in criminal humanities, driven by repressed childhood trauma from her parents' murder-suicide. She is determined to find Katelynn Heath and stop the Midnight Man despite personal danger. She works closely with Clif Burgess and rekindles her strained relationship with Benedict Hoffman.

Arc: Helen initially struggles with working alongside Benedict, but she overcomes her feelings to collaborate, survives an explosion and a shootout, and eventually shows willingness to rebuild trust with him. She captures Lucas Poole and rescues Katelynn.

• Benedict Hoffman — former student and lover, now colleague and partner
• Clif Burgess — FBI partner and longtime friend
• Olivia 'Livvie' Diaz — boxing coach and temporary guardian
• Katelynn Heath — missing teen she works to rescue
• Lucas Poole — antagonist she pursues and arrests

A professor of psychology and former priest who hunts the Midnight Man on the dark web for five years. He believes evil is a real force and struggles with his past decisions, including leaving Helen. He is described as a 'mind whisperer' and uses the alias Bench2Beast in the game Eidolon.

Arc: Initially refusing Helen's request for help, he later joins the investigation, reconciles with Helen narrowly, survives an assassination attempt by Lucas Poole, and helps solve the case. He asks Helen if they can start over.

• Helen Belle — former student and lover, now colleague
• Maggie — his dog and companion
• Scott Poole — former mentor and rival
• Lucas Poole — his adversary and target
• Derrick Tremblay — former patient he visits in prison

The Midnight Man, a charismatic online predator who manipulates vulnerable teens into murder and suicide through games and AI; son of Dr. Scott Poole. He uses aliases like Doogie and Braveh3art and directs a network of young followers.

Arc: He orchestrates multiple family murders, hacks into Helen's computer, and attempts to kill Benedict, but is captured after a shootout in which Shelby betrays him. His attorneys later argue mental incapacity.

• Helen Belle — adversary he targets and taunts
• Benedict Hoffman — primary target of his assassination attempt
• Shelby Reed — his follower who later betrays him
• Elliot Widner — his protégé who kidnaps Katelynn
• Scott Poole — his father, whom he had killed

A high school cheerleader and twin sister of Jason; deeply worried about her brother's mental state. She is kidnapped by Elliot Widner after surviving an attack in her home, and is found alive but injured in a cabin.

Arc: She survives being kidnapped and beaten, undergoes a burr hole craniotomy, and is rescued by Helen. She mourns her family and begins to heal, eventually returning to England with her aunt.

• Jason Heath — twin brother, deceased
• Eric Heath — younger brother, deceased
• Andrea Heath — mother, deceased
• Michael Heath — father, deceased
• Elise Schmidt — best friend
• Daisy — her dog
• Elliot Widner — her kidnapper
• Helen Belle — rescuer and temporary guardian

Katelynn's twin brother, a gloomy teen obsessed with dark music and violent video games. He kills his family under the influence of the Midnight Man and later commits suicide.

Arc: He murders his parents and younger brother, tells Katelynn to run, and flees. His body is later found in a field from a self-inflicted gunshot; his fingerprints are on the weapon.

• Katelynn Heath — twin sister
• Eric Heath — younger brother, murdered
• Andrea Heath — mother, murdered
• Michael Heath — father, murdered
• Lucas Poole — his manipulator (the Midnight Man)

A teen who takes boxing lessons from Helen after being sexually assaulted twice; struggles with an abusive stepfather. She wants to learn self-defense and becomes close to Helen.

Arc: She slowly opens up to Helen, moves in with Jazz after filing complaints against her stepfather and Roadie, and becomes more confident. She sends Helen a celebratory text in the epilogue.

• Helen Belle — boxing coach and mentor
• Jazz — friend and temporary guardian
• Roadie — stepfather's friend who assaulted her
• Connor — her older brother

Denver PD detective and longtime colleague of Helen; works closely on the Heath murder case despite suffering from cancer (shown by a tremor in his hands). He is determined to catch the Midnight Man before his illness kills him.

Arc: He remains dedicated to the investigation, helps coordinate the trap for Lucas Poole, and continues working despite his health. He is present during many key interviews and operations.

• Helen Belle — FBI partner and friend
• Elaine Carr — colleague on the case
• Kirk Feldster — colleague in Ohio

A troubled teen manipulated by the Midnight Man into a plot to kill Dr. Hoffman. She uses the username Nocturne2Blue in Eidolon and is isolated from her family.

Arc: She initially follows Lucas Poole's orders but ultimately betrays him by shooting his accomplice and refusing to kill Benedict, inspired by a belief in love. She undergoes surgery and returns home, breaking the chain of violence.

• Lucas Poole — her manipulator
• Benedict Hoffman — target she spares
• Helen Belle — saves Helen's life

A teen who murdered his family under the influence of the Midnight Man; he is confined to prison and speaks with Helen and Benedict. He believes the world is a simulation and wants to help others escape.

Arc: He begins to remember the night of the murders through therapy and eventually files a motion for retrial. He is deeply affected by the Midnight Man's continued presence through the game Umbra.

• Benedict Hoffman — visitor and therapist figure
• Helen Belle — FBI agent who defended him
• Lucas Poole — his manipulator
• William Bower — his attorney

A renowned psychiatrist and former mentor of Benedict; father of Lucas Poole. He developed video game therapy that his son later exploited. He testified against the influence of online manipulation in the Tremblay trial.

Arc: He is murdered by his son's protégé early in the story (stabbed to death), and his notes are later used by the FBI.

• Benedict Hoffman — former mentor and rival
• Lucas Poole — his son
• Jennifer Moore — patient

A protégé of Lucas Poole who posed as a computer repairman (using the alias 'Rick') and kidnapped Katelynn. He killed his cousin Albert and died by suicide during a police raid.

Arc: He carries out Lucas's plan to kidnap Katelynn and intends to marry her to escape the simulation, but he is killed by a self-inflicted gunshot when authorities close in.

• Lucas Poole — his mentor
• Albert Widner — cousin, whom he killed
• Katelynn Heath — his kidnap victim

Katelynn's best friend; initially keeps secrets about Jason but eventually cooperates with the FBI. She provides crucial information about Jason's call from the Midnight Man.

Arc: She is pressured by the FBI and eventually reveals that Jason called her and warned her not to tell anyone about the Midnight Man.

• Katelynn Heath — best friend
• Jason Heath — friend's twin brother who called her

A psychopathic teen treated by Scott Poole; later manipulated by the Midnight Man into killing her mother and attempting to kill her brother. She is currently in a forensic psychiatric hospital.

Arc: She remains uncooperative, attacks Helen, but her belongings and keystroke logs help the FBI identify Lucas Poole and Animus.

• Scott Poole — former therapist
• Lucas Poole — online contact 'Doc' who manipulated her
• Timothy Moore — stepfather
• Marlene Moore — mother, deceased

Supervisory special agent for BAU Three who leads the investigation from headquarters. He authorizes warrants and operations, including the trap for Lucas Poole.

Arc: He coordinates the FBI response, approves Helen's plans, and helps coordinate the safe house and assault teams.

• Helen Belle — subordinate and colleague
• Clif Burgess — colleague
• Sara Seward — colleague

An FBI cyber analyst who uncovers digital evidence including traffic cam footage of the van, developer lists, and keystroke logs. She enters Underland and helps identify Animus.

Arc: She provides critical technical support and discovers the connection between NeoPath, San Carlos, and Animus.

• Helen Belle — colleague and friend
• Zane Samir — supervisor

An FBI crimes against children specialist who questions Scott Poole's credibility and works closely with Clif and Helen. She is described as having a refusal to compromise on behalf of any child.

Arc: She contributes to the investigation, shares concerns about Poole, and participates in the final operation discussion.

• Helen Belle — colleague
• Clif Burgess — colleague
• Scott Poole — worked with him on a previous case

An FBI agent in Ohio who assists Helen and Clif on the ground, coordinating the search for Katelynn and leading the raid on Albert Widner's cabin.

Arc: He helps find Katelynn alive and later assists with evidence collection.

• Helen Belle — colleague
• Clif Burgess — colleague

A colleague from CARD who updates Helen on search operations for Katelynn and discusses resource constraints.

Arc: She provides operational support but is limited by resources.

• Helen Belle — colleague from a previous case

A high school teacher who describes Jason's shift to dark literature, his isolation, and strange writings. He provides insight into Jason's mental state.

Arc: He cooperates with the FBI and expresses concern for Katelynn.

• Jason Heath — former student
• Katelynn Heath — student he thinks highly of

A computer sciences teacher who reveals Jason's talent for coding and his obsession with simulation theory. He built a game engine called Möbius.

Arc: He shares observations that help the FBI understand Jason's mindset.

• Jason Heath — student

Derrick Tremblay's attorney who accompanies him during interviews and later files a motion for retrial.

Arc: He ensures the interview is legal and represents Derrick's interests.

• Derrick Tremblay — his client
• Helen Belle — FBI agent
• Benedict Hoffman — consultant

Katelynn's aunt who comes to the hospital to care for her after the rescue. She protects Katelynn from learning about her parents' deaths too soon.

Arc: She briefly appears at the hospital, providing comfort to Katelynn.

• Katelynn Heath — her niece

Benedict's teaching assistant who flirts with him and reminds him of Helen. She is minor but appears in a few chapters.

Arc: She delivers graded papers and leaves with Doogie, providing context for Benedict's state of mind.

• Benedict Hoffman — teaching assistant

A fellow boxing coach and former marine who houses Livvie after she runs away from home. She is trusted by Helen.

Arc: She protects Livvie and helps her file complaints.

• Helen Belle — friend and fellow coach
• Olivia 'Livvie' Diaz — temporary guardian

Benedict's dog who accompanies him on walks and provides comfort. She is often present during key moments.

Arc: She remains a loyal companion throughout the story.

• Benedict Hoffman — owner

Katelynn's Australian shepherd who is found with her in the cabin. She helps lead Helen to Katelynn.

Arc: She is rescued alongside Katelynn and accompanies her to the hospital.

• Katelynn Heath — owner