Harry is an Inspector with the Oslo Police Department Crime Squad who previously trained with the FBI. He maintains a reputation as Norway's preeminent investigator despite his struggles with alcohol addiction and depression. He is deeply devoted to his ex-girlfriend's son but struggles to maintain stability in his personal relationships. His unusual, open-minded approach to police work frequently frustrates his superiors.

Katrine is a newly appointed officer in the Oslo police department, transferring from the Sexual Offenses Unit. She is highly intelligent and displays a fiery intensity for police work. She confidently challenges traditional expectations for female officers by wearing men's cologne and operating with a pragmatic, aggressive edge.

Rakel is Harry's ex-girlfriend who ended their relationship because of the darkness his job brought into their home. She seeks a peaceful life and is currently planning to marry her new partner. Despite her clear boundaries, she struggles with lingering feelings for Harry and encourages his continuing bond with her son.

Mathias is a practicing doctor and Rakel's current boyfriend. He offers the reliable partnership she desires and respects her personal boundaries. He actively tries to build a connection with her son, though he faces resistance, and he occasionally provides medical insights to Harry regarding the police investigation.

Arve is the famous owner of the Liberal publication and a prominent media figure in Norway. He projects an image of high moral standing and integrity to the public. Outside of his media empire, he plays on a local curling team with other professionals.

Oleg is Rakel's young son. He has formed an incredibly close, trusting bond with Harry, who acts as his primary father figure. He is quiet and wary by nature, making him resistant to his mother's attempts to integrate her new boyfriend into their daily lives.

Magnus is a detective on the Crime Squad who assists Harry with research and groundwork. He complies with Harry's unconventional requests, such as compiling statistics on missing married women across the entire country.

Gunnar is the chief superintendent and Harry's boss at the Oslo Police Headquarters. He constantly balances the political pressures of law enforcement with managing his most unpredictable investigator. He generally supports Harry but worries intensely about public relations.

Bjørn works in the forensics unit and brings critical technical expertise to the team. He draws on his rural childhood on a farm to help identify unusual agricultural tools that might be connected to the crime scenes.

Filip is a teacher and the husband of a missing woman. He comes across to investigators as angry and rigid in his home life. His lack of a solid alibi makes him a person of interest to the police early in the investigation.

Idar is a doctor who specializes in plastic surgery and rare genetic diseases. His medical practice connects the families of several missing women, drawing the intense scrutiny of the Oslo police.

Gert was a notorious investigator for the Bergen police department. He was widely accused of corruption and police brutality before his own mysterious disappearance during an unresolved case.

A worker inspecting Harry's apartment building for rot. He frequently requests the keys to Harry's apartment, slowly dismantling the walls over the course of the investigation.

Birte is a married woman who mysteriously vanishes from her home on the night of the first snowfall. Her disappearance launches Harry's investigation into the missing women.

Jonas is Filip and Birte's young son. He provides crucial early clues to the police about his mother's missing scarf and a recent undisclosed doctor's appointment.

Sylvia is a woman targeted at her rural farm while slaughtering chickens. She is resourceful and attempts to fight back against her attacker before fleeing into the icy woods.

Rolf is Sylvia's husband and the co-owner of the Taste of Africa import shop. He insists to the police that his wife would never willingly leave him.

Ane is Sylvia's twin sister. She provides Katrine with vital background information regarding Sylvia's turbulent marriage.

Eli is a married woman who notices strange footprints outside her bedroom window. She receives a threatening anonymous phone call that deeply shakes her.