Series synopsis
Still Waters is a British drama mystery television series that premiered on S4C on November 13, 2025. It was created by Gina Moriarty. It stars Mark Lewis Jones, Sian Reese-Williams, Robert Glenister and Matthew Gravelle.
In 1995, activist Llyr dies in a bombing; his cousin Rhys is jailed for his murder. In 2025, Rhys returns to buried secrets in a gripping tale of protest, guilt, and generational reckoning. Starring Mark Lewis Jones and Sian Resse-Williams.
Premise
In 1995, activist Llyr dies in a bombing; his cousin Rhys is jailed for his murder. In 2025, Rhys returns to buried secrets in a gripping tale of protest, guilt, and generational reckoning. Starring Mark Lewis Jones and Sian Resse-Williams.
Cast and characters
Leading cast
- Mark Lewis Jones as Rhys Owen
- Sian Reese-Williams as Caryl Huws
- Robert Glenister as Robert Davies
- Matthew Gravelle as Gareth Breckon
- Nia Roberts as Eve Davies
- Maeve Courtier-Lilley as Mabli Davies Owen
- Suzanne Packer as Gillian Morris Jones
- James Macnaughton as Young Robert
Supporting cast
- Leisa Gwenllian as Eve Ifanc
Guest cast
- Leisa Gwenllian as Eve Ifanc
Episodes
This series spans 1 season with 6 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 6 | November 13, 2025 | November 13, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Episode 1 Rhys returns to Llanemlyn after prison. As Caryl digs into a 1995 tragedy, secrets emerge amid the protest against a reservoir expansion. |
November 13, 2025 |
| 2 |
Episode 2 Caryl uncovers secrets as Rhy's search brings him face-to-face with Eve. |
November 13, 2025 |
| 3 |
Episode 3 Caryl faces a crisis of loyalty and truth, as new leads and Rhys’s revelations about the bombing stir hidden tensions. |
November 13, 2025 |
Production
Release
| Original network/platform | S4C |
|---|---|
| First aired | November 13, 2025 |
| Last aired | November 13, 2025 |
| Status | continue |