Everything you need to know about Under Salt Marsh
Under Salt Marsh is a limited series from writer, creator, and executive producer Claire Oakley, set in the fictional Welsh town of Morfa Halen, a tight-knit community precariously nestled between towering mountains and a fast-encroaching sea that threatens its very existence.
As a once-in-a-generation storm begins to gather far out at sea, former detective turned teacher Jackie Ellis discovers the body of her 8-year-old pupil, Cefin, seemingly drowned. The discovery sends shockwaves through the community, reviving the ghost of an unsolved cold case that rocked the town three years prior – the disappearance of Jackie’s niece, Nessa, which cost her career.
Cefin’s death summons Jackie's former partner, Detective Eric Bull, back to Morfa Halen to lead the investigation into a community he failed once before. Convinced the cases are linked, Jackie and Bull must reconcile and race to uncover long-buried secrets inside Morfa, before the storm breaks and all the evidence is gone for good.
An intimate and cinematic story, Under Salt Marsh takes audiences into the heart of a community bound by nature and fractured by an unthinkable crime.
The series is set for release exclusively on Sky in 2026.
Who stars in Under Salt Marsh?
Leading the cast of Under Salt Marsh are:
- Kelly Reilly (Yellowstone, Here) as Jackie Ellis
- Rafe Spall (The English, Jurassic World: Fallen Kingdom) as Detective Eric Bull
- Jonathan Pryce (The Crown, Slow Horses) as Solomon Bevan
Naomi Yang (Nightsleeper, Wolfe) as Jess Deng
Joining them are:
- Harry Lawtey (Industry, Joker Folie à Deux) as Dylan Rees
- Dinita Gohil (Sandman, Greed)
- Brian Gleeson (Bad Sisters, Phantom Thread)
- Kimberley Nixon (Fresh Meat, Life and Death in the Warehouse)
- Mark Stanley (Happy Valley, The Reckoning)
- Dino Fetscher (Fool Me Once, Foundation)
- Lizzie Annis (The Witcher: Blood Origin, Extraordinary)
- Rhodri Meilir (Pren Ar y Bryn/Tree On A Hill, Craith/Hidden)
- Julian Lewis Jones (House of the Dragon, Wheel of Time)
- Newcomer Amara Atwal as Nessa
What is the age rating of Under Salt Marsh?
Currently, Under Salt Marsh has not been given an official age rating.
We will update when there is more information available.
Will there be a series two of Under Salt Marsh?
No – Under Salt Marsh is a limited series.
The series will run for six episodes upon its release.
How to watch Under Salt Marsh on Sky
As a Sky Original, Under Salt Marsh will be available to watch on Sky and streaming service NOW. The series will not be available on Netflix, Prime Video, or Disney+.
Under Salt Marsh launches exclusively on Sky and NOW in 2026.
Keep checking in here for more details and information as it is released.