Ariel is a small business owner and single mother who runs a bookstore in a remote upstate village. Married to John Wright for only a few months, she is thrust into a desperate search when he disappears during their Lisbon vacation. Previously known as Laurel Turner, the wealthy wife of a New York financier, she harbors dark secrets from her past and operates with hidden resourcefulness.

John is Ariel's new husband who works a lucrative corporate job and occasionally travels for business. He has a military and intelligence background that he keeps guarded. His sudden disappearance in Lisbon sets off an international crisis and raises questions about his past.

Charlie is a wealthy, prominent New York businessman and the incoming nominee for vice president of the United States. He is deeply arrogant and uses his vast resources to intimidate and silence others. He shares a dark history with Ariel from her days as Laurel Turner.

The local CIA Chief of Station in Lisbon. She frequently encounters sexism in her male-dominated field and is quick to recognize the geopolitical stakes of the Wright disappearance. She oversees the surveillance and intelligence-gathering operations surrounding Ariel.

A seasoned Lisbon police detective assigned to John Wright's disappearance. He adopts an affable, sometimes confused demeanor reminiscent of Detective Columbo to subtly observe suspects. He initially views Ariel with skepticism, given the short timeline of John's absence.

A pragmatic detective with the Lisbon police. She is highly suspicious of ordinary marital deception and initially believes John is simply lying to Ariel. She handles the bureaucratic and public image aspects of their investigations with a careful eye.

A foreign correspondent and journalist based in Lisbon. Driven by the scent of a major political scandal, he becomes intensely curious about Ariel's frantic visits to the embassy and police. He uses his investigative skills to dig into her past identity.

A wealthy New York City financier and Ariel's ex-husband from when she lived as Laurel Turner. He is deeply embedded in elite social circles and often dismissive of his wife's needs, prioritizing his status and comfort over her well-being.

Ariel's young son who lives with her in upstate New York. He has a history of fragile health, which makes Ariel intensely protective of him. He is staying with his grandmother while Ariel is in Europe.

A condescending consular official at the US Embassy. He flirts with Ariel and dismisses her concerns, assuming her younger husband is swindling her. He inadvertently sets the CIA on Ariel's trail by noting her name changes.

A middle-aged CIA agent working under Nicole Griffiths in Lisbon. He is tasked with tailing Ariel through the city, leading to a physical confrontation when she catches on to his surveillance.

A young CIA agent on Griffiths's team. She uses her technical expertise to trace burner phones, rideshares, and security footage, uncovering crucial details about the kidnapping plot.

A young graduate student who works at Ariel's bookstore. Born Ember, she changed her name and serves as a reliable, if slightly nosy, point of contact for Ariel back home.

Ariel's mother. She disapproves of Ariel's isolated, rural lifestyle and has a strained relationship with her daughter, stemming from her historic failure to support Ariel during moments of crisis.

John Wright's sister, who currently lives in Morocco. She shares a fiercely loyal bond with her brother.

A wealthy woman from Ariel's former life as Laurel Turner. Her unexpected appearance in the bookstore reminds Ariel of the high-status world she left behind.

The lone lawyer in Ariel's small upstate town. He provides crucial legal advice about nondisclosure agreements that quietly shapes Ariel's understanding of her rights.

Ariel's former neighbor in her rural town. He attempted to assault her, but she used her extensive self-defense training to fend him off, cementing her resolve to protect herself.