A brand new, six-part S4C crime drama has completed filming in Pembrokeshire - with first look images of ‘Cleddau’ - set in Pembroke Dock, just released.

Cleddau (named after the river near the series’ setting) will be shown on Welsh language TV channel S4C in October.

Actress Elen Rhys (The Mallorca Files, Panic Button) returns to Welsh TV in her first major role in her mother tongue.

Cleddau is described as an emotionally charged, psychologically driven thriller that sees DI Ffion Lloyd (played by Rhys), partnering up with her ex-lover DS Rick Walters, actor Richard Harrington (Hinterland, Fisherman’s Friends: One and All) to find out who is responsible for murdering a nurse in a Welsh coastal town.

Cleddau S4C
The brand new, six-part S4C crime drama has completed filming in Pembrokeshire. (S4C)

The series was filmed on location on the Pembrokeshire coast in west Wales and in south Wales, and stars - Rhian Blythe (Keeping Faith, Hidden) as Helen Sheldon, Ioan Hefin (Gangs of London, Apostle) as DCI Alan Vaughan, Aled Pugh (The Light in the Hall, Hunky Dory) as DS Celyn Howells, Mali Ann Rees (Lost Boys and Fairies) as DC ‘Mogsy’ Morgan, Will Thomas (Tree on a Hill, Steeltown Murders) as Griff Lloyd, Sharon Morgan (The Sin-Eater) as Delyth Lloyd and Hannah Daniel (Creisis) as Lisa Redwood.

Cleddau is an original series written by Cath Tregenna who was excited to set a drama in her native west Wales having previously written for hit TV shows including Three pines, Law & Order UK, Lewis, DCI Banks & The Bench.

She said: “I'm so excited to create and write my own series and share it with S4C audiences as that's where my television career began. 

“It's a privilege to write in the voice and accents that are part of my childhood and bring to bear what I've learnt in over 25 years of writing crime thrillers.”

Cleddau actors
Cleddau is described as an emotionally charged, psychologically driven thriller that sees DI Ffion Lloyd partnering up with her ex-lover DS Rick Walters. (S4C)

Carmarthenshire-born Sion Ifan, directed all six episodes of the series.

The series is produced by Blacklight for S4C and distributed by Banijay Rights, the global distribution arm of Banijay Entertainment, and supported by Welsh Government via Creative Wales.

Banijay Rights handles distribution for an English language version – The One That Got Away – for international audiences.