Ellie is a successful defense attorney from Philadelphia experiencing intense career burnout. Facing a crisis in her personal relationship, she escapes to her aunt's house in Lancaster County. As a highly logical thinker, she struggles to adapt when forced to live on an Amish farm without electricity to serve as the legal custodian for her new client.

Katie is an 18-year-old unmarried Amish woman whose life is upended when a dead infant is found on her family's farm. She is devout, gentle, and outwardly obedient, yet harbors hidden desires that conflict with her strict community's expectations. Under intense psychological distress, she firmly denies having been pregnant or giving birth.

Sarah is Katie's mother, who presents the outward image of a quiet, submissive Amish wife. Having already lost a daughter to an accident and a son to excommunication, she is desperate to keep her family together. Beneath her stoic and obedient exterior, she harbors fierce protective instincts toward her remaining children.

Aaron is the patriarch of the Fisher family and a devout believer in the Old Order Amish faith. He is a severe, uncompromising man who values his community's rules and reputation above all else. His strict adherence to religious law prevents him from engaging with the secular legal system, which complicates his daughter's defense.

Samuel is a young Amish farmhand and Katie's serious suitor. He embodies the community's ideals of a hardworking, honest, and steadfast man. He expects to marry Katie and build a traditional life together, making him deeply confused by the criminal accusations against her.

Jacob is Katie's older brother, who was excommunicated from the Amish church for choosing to attend college. Living as an exile in the secular world, he represents the severe consequences of defying the community's strict rules. Despite his banishment, he deeply loves his sister and tries to offer her glimpses of a different life.

Coop is a perceptive psychiatrist based in Philadelphia and a former college boyfriend of Ellie. He provides a clinical, secular lens to help understand Katie's psychological state. His presence in Lancaster County forces Ellie to confront her unresolved emotional baggage.

Lizzie is a logical, methodical police detective representing the secular legal system. She views the case through a strictly evidence-based perspective, struggling to understand the cultural nuances and psychological pressures unique to the insulated Amish community.

Adam is an educated man who lives in the secular world and holds a doctorate in paranormal science. He studies ghosts and lingering emotional energy, ideas that resonate with Katie's experiences. He represents the temptations of the outside world that clash with Katie's strict upbringing.

Leda is Ellie's great-aunt who was raised Amish but was shunned decades ago for marrying an outsider. She serves as a vital bridge between Ellie and the Fisher family, understanding the rigid rules of the community despite living in exile from it.

George is the ambitious county attorney prosecuting Katie's case. He approaches the trial with determination, recognizing the high-profile nature of the crime as a potential boost for his office.

Stephen is a successful lawyer in Philadelphia and Ellie's current partner. He is content with their childless lifestyle following his vasectomy, a stance that creates a deep, irreconcilable rift in their relationship.

Levi is a 16-year-old hired hand working on the Fisher dairy farm. He is a typical Amish teenager who inadvertently sets the legal crisis in motion during his morning chores.

Ephram is the spiritual leader of the local Amish church district. He balances strict adherence to religious laws with a pragmatic concern for the well-being of his congregation, sometimes overriding Aaron's rigidity.

Hannah is Katie's younger sister who tragically drowned at the age of seven. Her memory haunts the Fisher family, and Katie claims to see her ghost, a manifestation of profound grief and unresolved trauma.

Elam is Aaron's father and Katie's grandfather. He is an elder in the Amish community who lives on the family property and assists with farm operations.

Mary is Katie's best friend within the Amish community. She is empathetic and understanding, providing comfort to those affected by the scandal.

Dr. Polacci is a forensic psychiatrist hired by Ellie to evaluate Katie. She is experienced in recognizing the signs of dissociation in neonaticide cases and helps shape the defense strategy.

Dr. Riordan is a forensic psychiatrist who testifies for the prosecution. He argues that Katie's actions fit a calculated profile rather than a dissociative state.

Judge Ledbetter is the pragmatic judge assigned to oversee Katie's trial. She enforces the strict rules of the courtroom while occasionally showing understanding toward the cultural complexities of the case.

Dr. Zeigler is a neonatal pathologist who assists the defense team by investigating alternative, natural causes for the infant's death, uncovering crucial medical evidence.

Frank is Leda's husband, an outsider whose marriage to Leda resulted in her permanent shunning from the Amish community.