This is a list of characters/actors featured in the S4C/BBC soap opera Pobol y Cwm.

Present characters This includes characters who have been in the habit of returning after a long absence.

CharacterActorDurationInformationMegan Harries (née Owen) Lisabeth Miles 1974–1996, 2002, 2003, 2011– The village's oldest (and longest-serving) character, Megan lives on her own after the deaths of her two husbands, Cliff and Reg, and is the proud owner of charity shop Apêl Maenan. Mother of Rhian and adoptive mother of Gareth. Once a regular, she is now a recurring character.David 'Dai' Ashurst Emyr Wyn 1978–1984, 2001–2020, 2022– Former owner of APD; now retired. Husband of Diane, brother of Dic "Deryn" Ashurst and father of DJ. Formerly married to Sabrina Harries and Alice. Ieuan Griffiths Iestyn Jones 1988–1992, 1995–1997, 2000–2011, 2019– Local councillor, and owner of Pwll Bach; the nearby landfill site. Former owner of Cwm FM, Cwmderi’s radio station. Father of Melanie and Lauren. Grandfather to Indeg. Ex-husband of Hazel. Previously had an affair with Lisa Morgan and Diane Ashurst. Now married to Anita and works in APD.Eileen Probert Sera Cracroft 1989–1996, 1998, 2007, 2008– Widow of Jon Markham and Jim Probert. Ex-wife to the late Denzil Rees. Runs Penrhewl farm and the organic food company Cae Glas. Mother of Sioned and Huwi-John and the late John and Angela, grandmother of Lili and Jac.Hywel Llywelyn Andrew Teilo 1990– Ex-husband of Stacey, Ffion, Gaynor and Sheryl. Father of Rhys, and the late Meilyr. Adoptive father of Esther; local councillor and DJ on village radio station Cwm FM.Cassie Morris (née Nicholas) Sue Roderick 1991–2004, 2018– One of Cwmderi’s most colourful characters. Ex-wife of the late Teg and mother of Em and the late Steffan (who she was forced to kill in self-defence after he killed Teg). Co-landlady of the Deri with Kath.Sioned Rees Emily Adkins / Elan Evans / Emily Tucker (Present) 1993–1996, 2007, 2008– Daughter to Eileen Markham and Denzil Rees. Half-sister of Angela and Huwi-John, and twin sister of the late John Rees. Mother of twins Lili and Jac. Great niece of Marian and distant cousin of Cadno. Married to Ed Charles from 2016–2017. Sentenced to six months imprisonment for spousal abuse in 2018. Was engaged to DJ but he jilted her and ran off with his ex-girlfriend Non. Runs the cafe/deli Tamed.Kathleen 'Kath' Pearl Jones Siw Hughes 1993–2007, 2014, 2017– Jones family matriarch, mother of Mark and Stacey. Married to Brynmor. Co-landlady of the Deri with Cassie.Mark Jones Arwyn Davies 1993– Cwmderi's postman and taxi driver. Son of Kath and Dyff and father of Debbie's son, Ricky.Cai Rossiter Rhys ap William 1996, 2002–2012, 2021– Brother of Gwen White and Uncle of Macs, Iolo and Huw. Initially introduced as a student at Cardiff University who Stacey Jones had an affair with. Now a teacher.Rhys Llywelyn Aled Davies / Jack Quick (Present) 1997–2001, 2008–2012, 2014–2015, 2018– Son of Hywel and the late Nia Matthews and adoptive brother of Esther. Has a daughter called Gwen with Lois Evans whom he fathered when he was 14 and was given up for adoption. Previously owned the local gym, Chwys Rhys, and previously an estate agent with Tomos ac Ellis, now runs his own pub Y Ceffyl Du (The Black Horse).Diane Ashurst (née Hopkins) Victoria Plucknett (Present) / Eluned Jones 1998–2020, 2022– Wife of Dai, local council mother of Jason and adopted mother to her niece Emma. Ex-wife of Reg Harries and Graham Francis. Former barmaid and co-owner of APD before retiring, now serves on the council. Anita Pierce Nia Caron 1999– Ex-wife of the late Meic Pierce and aunt to Kelly. Had an affair with Colin Evans which ultimately resulted in the breakdown of her marriage with Meic. Previously was in a relationship with Siôn, now married to Ieuan Griffiths. Mother to three children, Darren, Eira (deceased), and Dwayne (deceased). Works in APD. Recently diagnosed with early onset Dementia.Indeg Griffiths Nia Brown / Shauna Rae Pick / Jemima Nicholas (Present) 2000–2001, 2010–2011, 2025– Granddaughter of Ieuan Griffiths, daughter of Melanie Griffiths. Beautician. Friend of Siwsi and Lleucu, girlfriend of Ows.Britt Evans (née Monk) Donna Edwards 2002– Sister of the late Brandon and half-sister to Garry Monk. Former partner of Teg, divorced from Siôn White. Mother of Chester, Catrin and Aaron. Previously ran the chippy and owned Y Deri with Garry, now in charge of the fried chicken shop MFC. Now married to Colin. Suffers from Bipolar Disorder.Iolo Davies-White Carwyn Rhys Hall / Llyr Thomas / Dyfan Rees (Present) 2002–2005, 2007, 2009– Son of Sion and Gwen, brother to Macs and Huw, widow of Tyler. Adoptive father of Greta. Suffers from OCD. Local plumber. Separated from Tyler after discovering he had an affair with one of his pupils, Aled Richards. Siôn White Jeremi Cockram 2002– Father of Iolo, Macs and Huw, ex-husband of Britt and Dr Gwen White (who died of cancer in 2003). Lives in Y Felin and works as a Welsh translator. Previously in a relationship with Anita.Kelly Evans Lauren Phillips 2003–2005, 2007, 2009, 2015– Plain-speaking Kelly comes from the Gurnos estate in the South Wales Valleys. Niece of Anita Pierce, previously owned Caffe Meic and was a journalist for the Western Post. Had an eating disorder. Widow of Ed Charles. Mother to Paul, who was put up for adoption shortly after being born. Married to Jason and then divorced. Ifan Owain Wilson (Ows) Dom Francis 2004, 2026– Grandson of Cassie seen briefly as a baby (uncredited) in 2004, before returning to track down his grandmother in 2026. Dating Indeg.Ffion Llywelyn (née Roberts) Bethan Ellis Owen 2004– Headteacher of Ysgol y Mynach; widow of Owen, ex-wife of Hywel Llywelyn. Mother of Macs White's daughter, Arwen Hedd. Recovering alcoholic. Was previously in an on-off relationship with former step-son, Rhys. Huw "Jinx" Jenkins Mark Flanagan 2005–2015, 2021– Formerly DJ at Cwm FM, owner of the local pizza place. Previously engaged to Ffion Roberts and also dated Izzy Evans, Kelly Evans and Dani Thomas. Currently runs the village pizza place.Dani Thomas Elin Harries 2007– Beautician, previous owner of Y Deri and Dan Y Seren. Ex-wife of Mark Jones, half-sister of Gethin Thomas and to Tyler and Liv Davies, aunt to Daniel and Greta, previously married to Garry Monk (now divorced), mother of the late Seren (initially Carol) and Gabriel. Works as a cleaner.Colin Evans Jonathan Nefydd 2008– Often a comedy figure as a result of his unwise decisions and disappointing love life, ex-husband of Gaynor, father of Izzy and Lois, and brother of Yvonne. Now married to Britt. Manager of local shop.Gaynor Llywelyn Sharon Roberts 2008– Retired headteacher at Ysgol y Mynach. Mother of Izzy and Lois, ex-wife of Colin and Hywel, half-sister of Cheryl and ex-girlfriend to Elgan. Now dating Cheryl's ex Dave (now going by the name Tom Humphries).Lleucu Rossiter Alaw Grug Davies / Efa Grug (Present) 2008–2009, 2022, 2024– Daughter of Cai Rossiter and Nesta Roberts, niece of Ffion Llywelyn.Gwern Jones Elis Lloyd Hughes / Keogh Kiernan (Present) 2010– Son of Gwyneth Jones and Garry Monk. Currently living with Dani Thomas.Arwen White Evie Rose Jenkins / Nel Hannah (Present) 2012– Daughter of Ffion Llywelyn and Macs White.Esther Llywelyn Eira Adoh / Rosie Ekenna (Present) 2016– Adoptive daughter of Hywel and the late Sheryl.Mathew Price Mark Stuart Roberts 2016– Second cousin of Eifion. Currently shares a flat with Rhys. Dated Tesni and Izzy previously. Subject to an acid attack in early 2020. Current owner of APD. Huwi-John Probert Wil Owen / Evan Salter (Present) 2018– Toddler son of Eileen and the late Jim, half-brother of Sioned and uncle to Lili and Jac.Howard Owen Endaf Eynon Davies 2018–2019, 2021– Farmhand at Deri Fawr. Recently released from jail after organising illegal dog fights. Works at APD.Siwsi Davies Lili Beau 2025– Carer at Brynawelon Nursing Home who also works at APD. Friend of Indeg.

Past characters