Series synopsis
The Walsh Sisters is a drama comedy television series that premiered on RTÉ One on September 28, 2025. It stars Louisa Harland, Caroline Menton, Danielle Galligan and Mairéad Tyers.
Set in their Dublin hometown, Anna, Rachel, Maggie, Claire and Helen navigate the peaks and troughs of their late 20s and 30s. This is a sisterhood full of in-jokes, hand-me-down resentments and more than a few old wounds. But their DNA, history and shared love of power ballads keep the Walsh sisters together in the face of heartbreak, grief, addiction and parenthood.
Premise
Set in their Dublin hometown, Anna, Rachel, Maggie, Claire and Helen navigate the peaks and troughs of their late 20s and 30s. This is a sisterhood full of in-jokes, hand-me-down resentments and more than a few old wounds. But their DNA, history and shared love of power ballads keep the Walsh sisters together in the face of heartbreak, grief, addiction and parenthood.
Cast and characters
Leading cast
- Louisa Harland as Anna Walsh
- Caroline Menton as Rachel Walsh
- Danielle Galligan as Claire Walsh
- Mairéad Tyers as Helen Walsh
- Stefanie Preissner as Maggie Walsh
- Carrie Crowley as Mammy Walsh
- Aidan Quinn as Daddy Walsh
- Jay Duffy as Luke
Guest cast
- Samuel Anderson as Aidan
- Stephen Mullan as Garv
- Anna Nugent as Mrs. Jackson
- Theo Fitzgibbon as Damian
- Ailbhe Dorney as Kate
- Stewart David Hawthorne as David
- James Murphy as James
- Adrian Brian Spillett as Paramedic
- Annie Ryan as Dr. Byrne
- Gina Moxley as Josephine
- Debi Mazar as Chaquie
- Fiach Kunz as Dr. Conor Sheehan
Episodes
This series spans 1 season with 6 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 6 | September 28, 2025 | November 2, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Episode 1 Sisters Anna and Rachel share a flat in Dublin, where late nights and messy mornings are the norm. |
September 28, 2025 |
| 2 |
Episode 2 Anna is in hospital, with the Walsh family rallying around her in their own chaotic, mismatched ways. |
October 5, 2025 |
| 3 |
Episode 3 Anna is in hospital, reeling from events of the incident and desperate for answers. |
October 12, 2025 |
Production
Release
| Original network/platform | RTÉ One |
|---|---|
| First aired | September 28, 2025 |
| Last aired | November 2, 2025 |
| Status | continue |