The BBC is preparing to launch its highly anticipated new Irish comedy-drama, The Walsh Sisters, featuring an impressive ensemble cast drawn from popular series like Derry Girls and House of Guinness. This six-part series, adapted from author Marian Keyes' best-selling novel, offers a brutally honest and uncompromisingly funny exploration of Irish sisterhood.
Premiere Details and Series Overview
After initially airing in Ireland last year, The Walsh Sisters makes its long-awaited debut on BBC One and BBC iPlayer on Saturday, February 21, at 9.15pm. The series follows the turbulent lives of five sisters navigating their late 20s and 30s in their Dublin hometown, presenting what the official synopsis describes as a sisterhood full of in-jokes, hand-me-down resentments, and old wounds.
Main Cast Members and Their Roles
The Five Walsh Sisters
Maggie Walsh - Stefanie Preissner
Actress Stefanie Preissner portrays Maggie Walsh, described as mammy's favourite among the sisters. Preissner served double duty on the production, working both as the creative lead and writer behind the scenes while performing in front of the camera. Though relatively new to the entertainment industry, she has previously appeared in Can't Cope, Won't Cope and Finding Joy.
Rachel Walsh - Caroline Menton
Caroline Menton brings to life Rachel Walsh, a fan-favourite character from Keyes' novel series who continues to struggle with addiction and recovery. Rachel's complicated romance with Luke Costello, played by actor Jay Duffy, adds another layer to her storyline. Menton has been described as a rising star with credits including a 2024 horror film and episodes of Channel 5's All Creatures Great and Small.
Anna Walsh - Louisa Hardland
Derry Girls fans will recognize Louisa Hardland, who portrayed Orla McCool in the hit series, now starring as troubled sister Anna Walsh. Her character develops a romantic interest with Aidan, brought to life by Amandaland and Trollied star Samuel Anderson. Hardland's other credits include Big Boys, Hamnet, and Disney+'s Renegade Nell.
Claire Walsh - Danielle Galligan
Actress Danielle Galligan, no stranger to successful streaming series, takes on the role of Claire Walsh. Galligan previously starred as Nina Zenik in Netflix's Shadow and Bone and Lady Olivia Hedges in House of Guinness, bringing considerable experience to the ensemble.
Helen Walsh - Mairead Tyers
Mairead Tyers depicts Helen Walsh, the fearless baby of the family. Tyers is best recognized for her BAFTA-nominated performance as Jen in Disney+'s Extraordinary series. Her additional credits include Dead Shot, Belfast, My Lady Jane, and Obituary.
The Walsh Parents
Jack "Daddy" Walsh - Aidan Quinn
Veteran actor Aidan Quinn portrays the family patriarch, Jack "Daddy" Walsh. Quinn brings extensive film experience to the role, having starred in numerous well-known productions including Practical Magic, Desperately Seeking Susan, Avalon, The Mission, and All My Sons.
Mammy Walsh - Carrie Crowley
Irish actress and former radio and television presenter Carrie Crowley embodies the eccentric Mammy Walsh. Crowley previously hosted her own chat show Limelight and co-presented the 1997 Eurovision Song Contest with Ronan Keating. Her acting credits include Hope Street, Vikings: Valhalla, and the thriller Smother.
Supporting Cast Members
The series features several notable supporting actors who round out the ensemble:
- Luke Costello - Jay Duffy
- Aidan - Samuel Anderson
- Chaquie - Debi Mazar
- Josephine - Gina Moxley
Production Background and Anticipation
The Walsh Sisters represents a significant addition to the BBC's drama lineup, combining literary pedigree with television talent. Based on Marian Keyes' beloved novel, the series promises to deliver both humour and emotional depth as it explores the complex dynamics of family relationships. With its premiere scheduled for late February, audiences can expect a compelling portrayal of Irish sisterhood that has already generated considerable buzz following its initial Irish broadcast.



