Sami is a former NYPD detective recently fired for misconduct. He now works unpaid as a private investigator in exchange for legal representation. He is of Pakistani descent, married to Molly, and a father to a young son. Financially strained and haunted by his past, he relies on his sharp investigative skills to seek the truth about old traumas. He frequently uses humor to deflect his deepest anxieties.

Anna is a young woman who connects with Sami during his trip to southern Spain. She spends several days with him before a violent incident occurs. Her background involves escaping a difficult home life and working under dangerous handlers in Europe.

Sami's supportive and perceptive wife. She endures the family's financial struggles bravely and insists on complete honesty in their marriage. She refuses to let Sami shield her from the difficult realities of his investigations or their precarious bank account.

Tad is a worn, physically deteriorated man who recently gained freedom after his murder conviction was overturned on a technicality. He insists on his innocence regarding the death of Sami's former fiancée. He spends his days caring for his ailing mother while attempting to clear his name publicly.

Victoria is the youngest child of the wealthy Belmond family. She vanished following a New Year's Eve party in 1999. Her heavily publicized disappearance spawned numerous documentaries and theories, turning her absence into a major mystery for true-crime enthusiasts.

The eldest Belmond child and brother to Victoria. He struggled heavily with substance use and reckless driving in his youth but now works for Belmond Industries as a respected family man. He maintains a fierce, sometimes threatening stance regarding his family's privacy.

The wealthy founder of Belmond Industries. Known for his public humility despite his immense fortune, Archie uses his endless resources to tightly control his family's affairs. He prefers to handle problems privately rather than involving the legal system.

Archie's wife and mother to Thomas and Victoria. She carries immense guilt over her daughter's disappearance, haunted by the belief that a potential extramarital affair distracted her during the critical hours when Victoria went missing.

A Dutch man who served as Anna's associate during her time in Spain. Now working as a horror film producer and special effects artist, he possesses an arrogant demeanor but retains a protective instinct regarding his past. A previous violent encounter left him with a permanently damaged Achilles tendon.

Judith is the wealthy matriarch of the Burkett family. Currently out on bail for a separate scandal, she lives in a lavish mansion and harbors deep resentment toward Sami due to his involvement in her previous legal troubles. She frequently leverages her financial status to manipulate others and control her daughter.

Judith's daughter and Victoria Belmond's best friend at the time of her 1999 disappearance. She frequently stays in a rehabilitation center and holds closely guarded secrets about the night of the New Year's Eve party.

A member of the Pink Panthers, a trio of elderly amateur detectives in Sami's class. She conducts enthusiastic, highly capable background research and presents her findings with the dramatic flair of a television host.

A student in Sami's class who lost his hedge fund and family after a cheating scandal at a golf tournament. He wears golf attire constantly as a reminder of how small, impulsive mistakes carry heavy consequences.

An intelligent, unhoused 23-year-old woman who takes Sami's criminology class for free. She uses her quick wit to assist Sami with undercover surveillance and street-level information gathering.

An eccentric, unhoused student in Sami's class known for his bizarre government conspiracy theories and unusual classroom behavior. He prefers to work independently on his investigative assignments.

Sami's former partner at the NYPD. He frequently checks on Sami's well-being and uses his active police credentials to access official files that Sami can no longer reach.

A lawyer at the Whit Shaw firm who provides Sami with legal representation in exchange for unpaid investigative work. He attempts to moderate Sami's impulsive reactions to legal developments.

Sami and Molly's one-year-old son. His presence heavily motivates Sami's desire to be a better man and secure financial stability for his family.

Tad Grayson's ailing mother. She provides a crucial alibi for her son regarding the night of Nicole's murder, complicating Sami's certainty about the old case.

A heavily tattooed man with a criminal record who shared a prison cell with Tad Grayson. He begins aggressively tailing the Kierce family following Tad's release.

Sami's murdered former fiancée. Her death severely traumatized Sami, who remains dedicated to keeping her convicted killer behind bars despite the reopening of old cases.

A Spanish police commissioner who previously handled the initial report regarding Anna. He explains the nature of local scams targeting foreign tourists and opens official records for Sami's current investigation.