The Good Daughter Peacock Cast, Characters, Book and Series Guide

The Good Daughter Peacock cast is led by Rose Byrne as Samantha Quinn and Meghann Fahy as Charlotte Quinn, two sisters forced to confront the night of violence that fractured their family. Brendan Gleeson, Harper Steele, Olivia Williams, Michael Dorman, Audrey Grace Marshall and Drew Cheek also star. The six-episode limited series premieres November 12, 2026, exclusively on Peacock.

The crime thriller adapts Karin Slaughter’s bestselling novel of the same name. Slaughter is writing all six episodes and serving as showrunner, giving the author direct control over how the Quinn family’s story changes for television. Steph Green directs every episode.

Who Is in The Good Daughter Peacock Cast?

Peacock has confirmed eight cast members in its current fall schedule. The platform has officially identified Rose Byrne as Samantha and Meghann Fahy as Charlotte. Character names for the other announced actors have not been published, so those roles should remain listed as unannounced until Peacock provides a complete character guide.

An earlier Peacock cast announcement also listed Paula Malcomson and Jake McDorman. They are not included in NBCUniversal’s May 2026 fall-schedule cast list. Until Peacock clarifies their current status, they should not be presented as part of the main confirmed 2026 lineup.

Rose Byrne as Samantha Quinn

Rose Byrne plays Samantha Quinn, one of the two sisters whose lives were broken by a violent event in their family home. Samantha and Charlotte responded to the trauma in different ways, creating distance that the new case forces them to reconsider.

Byrne is known for the Apple TV+ series Physical, the legal thriller Damages and films including Bridesmaids, Spy and Neighbors. She is also an executive producer on The Good Daughter, giving her a creative role beyond playing Samantha.

Meghann Fahy as Charlotte Quinn

Meghann Fahy plays Charlotte Quinn, now a lawyer like her father. When a new attack shocks Pikeville, Charlotte becomes the first witness at the scene. Her involvement pulls the adult sisters back into memories and secrets connected to the violence they survived years earlier.

Fahy is best known for The White Lotus, The Bold Type and Netflix’s The Perfect Couple. Charlotte requires both courtroom intelligence and the vulnerability of someone whose professional control begins to collapse under personal pressure.

Brendan Gleeson

Brendan Gleeson is part of the principal ensemble, but Peacock has not announced his character. His credits include The Banshees of Inisherin, In Bruges, Calvary and the Harry Potter films. The story includes the Quinn sisters’ lawyer father, but it would be premature to assign Gleeson that role without official confirmation.

Harper Steele

Harper Steele joins the cast after appearing in the documentary Will & Harper. She is also a longtime comedy writer whose credits include Saturday Night Live. Peacock has not disclosed her character or whether the part draws on her familiar comic voice.

Olivia Williams

Olivia Williams is known for Dune: Prophecy, The Crown, The Father and Rushmore. Her role in the Peacock series has not been named. The Quinn family story contains several important adult figures, but the adaptation may combine or change characters from the novel.

Michael Dorman

Michael Dorman’s television work includes Patriot, Joe Pickett and For All Mankind. Peacock lists him among the current main cast without revealing his character.

Audrey Grace Marshall

Audrey Grace Marshall has appeared in The Flight Attendant and The Fairly OddParents: Fairly Odder. Her age and previous work may lead viewers to expect flashback material, but Peacock has not confirmed whom she plays.

Drew Cheek

Drew Cheek rounds out the eight names in NBCUniversal’s current cast list. Character details and earlier credits were not included in the official schedule announcement.

What Is The Good Daughter About?

Charlotte and Samantha Quinn have spent two decades trying to rebuild lives damaged by one night of violence. A new attack in their small hometown of Pikeville places Charlotte at the scene as the first witness. Because Charlotte is now a lawyer, she becomes involved in a case that is both professionally demanding and painfully personal.

As the investigation develops, buried family secrets and memories of the earlier crime return. Peacock describes the limited series as both a suspense thriller and an emotional story about survival, the relationship between a father and his daughters, and the complicated bond between sisters.

The title’s central question is not simply which sister behaves well. It points to the expectations placed on daughters and the cost of trying to preserve a family story that may not be honest.

Is The Good Daughter Based on a Book?

Yes. The Peacock series is based on Karin Slaughter’s bestselling crime novel The Good Daughter. The book also centers sisters Charlotte and Samantha Quinn, their lawyer father and the lasting consequences of a violent attack.

The adaptation has an unusual advantage: Slaughter is not only an executive producer but also the showrunner and writer of all six episodes. That does not guarantee a scene-for-scene translation, but it means changes to structure, characters or chronology are being made by the novelist herself.

How Might the Peacock Series Differ From the Book?

Peacock’s official synopsis says the sisters’ lives were fractured 20 years earlier, while descriptions of the novel may use a different span of time. That indicates the screen timeline has been adjusted. The series also has six hour-long episodes, so the adaptation can reorganize the novel’s past-and-present structure for television.

Character assignments beyond Samantha and Charlotte have not been confirmed. It is therefore too early to map every actor to a book character or determine whether some roles have been merged, renamed or newly created.

Readers should also expect the marketing to protect major twists. A detailed comparison before the premiere would risk spoiling both the investigation and the family revelations that give the novel its emotional weight.

Who Is Making The Good Daughter?

• Showrunner and writer of all episodes: Karin Slaughter
• Director of all episodes: Steph Green
• Executive producers: Karin Slaughter, Rose Byrne and Steph Green
• Made Up Stories executive producers: Bruna Papandrea, Steve Hutensky and Casey Haver
• Production: Made Up Stories in partnership with Fifth Season
• Studio and international distributor: Fifth Season
• U.S. platform: Peacock

Steph Green has directed television including Watchmen, The Book of Boba Fett and Run & Jump. Directing the entire limited series should help keep the visual language consistent across the present-day investigation and any flashbacks.

How Many Episodes Are in The Good Daughter?

The Good Daughter has six episodes, each planned for approximately 60 minutes. Peacock has not released episode titles, individual synopses or an exact total runtime.

NBCUniversal describes it as a limited drama. Viewers should expect the central case and family story to reach a conclusion within those six episodes rather than ending only as setup for a required second season.

When Does The Good Daughter Premiere?

The Good Daughter premieres on Peacock on November 12, 2026. Peacock has not yet clarified whether all six episodes will arrive together or follow a weekly schedule.

The premiere date is confirmed by Peacock’s fall 2026 schedule and NBCUniversal’s upfront announcement. Earlier Peacock articles that say no release date was available were published before the November date was announced.

Where Can You Watch The Good Daughter?

The series will stream exclusively on Peacock in the United States. NBCUniversal says Fifth Season is distributing it internationally, but country-specific broadcasters and streaming services have not been announced.

Peacock subscription options and availability can change, so viewers should check the platform close to November 12 rather than relying on an older price or plan description.

Is There a Trailer?

Peacock has released first-look imagery of Rose Byrne and Meghann Fahy as the Quinn sisters, but a full official trailer was not included with the fall-schedule announcement.

What Is Still Unconfirmed?

• Character names for six members of the current cast
• The complete supporting and guest cast
• The episode titles and detailed synopses
• Whether all episodes release together
• The official trailer date
• The exact filming locations used for Pikeville
• International streaming platforms
• The maturity rating
• Which novel scenes or characters have changed

If you enjoy adaptations built around investigations and morally complicated lawyers, explore our The Lincoln Lawyer Season 5 cast guide, the latest on the Reacher Season 5 book adaptation and our guide to A Woman of Substance.