The streaming series The Good Daughter arrives on Peacock as a tense family thriller set against a backdrop of legal drama and buried trauma. The narrative follows the Quinn sisters, Samantha and Charlotte, as they navigate the fallout from a violent childhood event while pursuing divergent careers in law. By pairing seasoned performers with emerging talent, the show aims to deliver a layered portrait of sibling rivalry and parental legacy.
Each episode weaves present-day courtroom battles with flashbacks that reveal how the sisters’ early experiences shaped their professional choices. The structure allows the audience to contrast Samantha’s role as a patent lawyer with Charlotte’s position as a defense attorney, highlighting the divergent paths taken after their mother’s murder.
Lead sisters and their portrayers
Rose Byrne embodies Samantha Quinn, the older sister who left town to specialize in patent law. Byrne first captured wide attention as a bridesmaid in Bridesmaids, though earlier work included roles in Sunshine, Troy and Marie Antoinette. In the same year she appeared as Moira MacTaggert in X-Men: First Class, a part she would revisit later. Byrne remains most recognizable for comedies such as Spy and the Neighbors franchise, while also appearing in horror entries like 28 Weeks Later and the Insidious series. Television credits include portraying Gloria Steinem in Mrs. America and leading roles in Physical and Platonic.
Meghann Fahy steps into the role of Charlotte Quinn, the younger sibling who stayed home to practice criminal defense. Fahy broke through on the second season of HBO’s The White Lotus, but her career began on Broadway, where she understudied and later replaced Natalie in the Pulitzer-winning musical Next to Normal. Prior to television, she appeared as Sutton on The Bold Type and accumulated 83 episodes of One Life to Live. Post-HBO, Fahy starred in the film Drop, the Netflix series Sirens, and projects such as The Perfect Couple and Your Monster. She has earned two Emmy nominations for her work on Sirens and The White Lotus.
Younger versions and the patriarch
Flashback scenes feature Audrey Grace Marshall as a teenage Samantha and Drew Cheek as a teenage Charlotte. Marshall’s earlier credits include playing Young Cassie on The Flight Attendant and a planned role in the unreleased Buffy the Vampire Slayer reboot, as well as portraying Viv in the 2022 live-action adaptation of The Fairly Oddparents. Cheek’s screen résumé consists of the feature F*ck Valentine’s Day, making his appearance in The Good Daughter a notable step into a higher-profile production.
The sisters’ father, Rusty Quinn, is brought to life by Brendan Gleeson. Gleeson, an Academy Award-nominated and Emmy-winning actor, secured his Emmy for the portrayal of Winston Churchill in the miniseries Into the Storm. Film audiences may recognize him from Harry Potter, Braveheart, 28 Days Later, Gangs of New York, and In Bruges. On television, Gleeson headlined Mr. Mercedes (2017-2019) and appeared in the 2022 series State of the Union.
Key supporting players
Harper Steele assumes the role of Lenore, Rusty’s secretary and a surrogate mother to the Quinn sisters. Steele’s first on-screen credit, she previously earned an Emmy as a comedy writer after a 13-year tenure at Saturday Night Live, including four years as head writer. Her screenwriting portfolio features Eurovision Song Contest: The Story of Fire Saga and The Spoils of Babylon. A recent documentary, Will & Harper, chronicles her friendship with Will Ferrell and her transition after coming out as transgender.
Veteran actress Olivia Williams portrays Harriet “Gamma” Quinn, the sisters’ mother whose murder catalizes the series’ central mystery. Williams’ filmography includes Rushmore, the 2003 Peter Pan, Anna Karenina, and An Education. She also appeared as Moira MacTaggert in X-Men: The Last Stand, and has a notable television record with roles in The Crown, Dollhouse, and the stage production of One Flew Over the Cuckoo’s Nest at London’s Old Vic.
School staff, suspect and extended family
In the courtroom drama, Shayna Benardo appears as Kelly Wilson, a suspect in a school shooting whom Charlotte elects to defend. Benardo’s previous work includes the Lifetime movie Don’t Sweat the Small Stuff, an episode of Doom Patrol, and the horror film Sorority Secrets. Paula Malcomson plays Judith, a middle-school English teacher, best known for her turn as Katniss Everdeen’s mother in The Hunger Games franchise and regular roles on Caprica, Deadwood, and Ray Donovan. Jake McDorman depicts Mason “Huck”—a fellow teacher with a grudge against Rusty. McDorman’s résumé includes leading parts in series such as Quintuplets, Greek, and The Right Stuff, alongside film appearances in Lady Bird and American Sniper.
The series also introduces Michael Dorman as Ben, Charlie’s estranged husband and a lawyer. Dorman, an Australian actor, has headlined shows like Wonderland, For All Mankind, and Patriot, and featured in the films The Invisible Man and Pirates of the Caribbean: Dead Men Tell No Tales. Together, this ensemble blends award-winning experience with fresh energy, promising a compelling exploration of family, law, and lingering loss.
