Name	Known for
Brochan Evans Dyfan Vaughan Dyfan Vaughan See fewer	Requiem (2018)
Eve Myles Faith Howells Faith Howells See fewer	Torchwood (2006)
Rebecca Harries Hannah Lewis Hannah Lewis See fewer	Keeping Faith (2017)
Bradley Freegard Evan Howells Evan Howells See fewer	Vikings: Valhalla (2022)
Lukasz Biela Odessa Foods Owner Odessa Foods Owner See fewer	Keeping Faith (2017)
Rhashan Stone DI Laurence Breeze DI Laurence Breeze See fewer	Hollington Drive (2021)
Eiry Thomas PC Susan Williams PC Susan Williams See fewer	The Bench (2001)
Aimee-Ffion Edwards Madlen Vaughan Madlen Vaughan See fewer	Slow Horses (2022)
Alun ap Brinley Geraint Jernigan Geraint Jernigan See fewer	The Indian Doctor (2010)
Iestyn Jones Emrys Huws Emrys Huws See fewer	Keeping Faith (2017)
Anastasia Hille Gael Reardon Gael Reardon See fewer	Snow White and the Huntsman (2012)
Owen Arwyn Shane Reardon Shane Reardon See fewer	On the Sea (II)
Betsan Llwyd Delyth Lloyd (Welsh) Delyth Lloyd (Welsh) See fewer	Keeping Faith (2017)
Harry Unsworth Rhodri Howells Rhodri Howells See fewer	Keeping Faith (2017)
Oscar Unsworth Rhodri Howells Rhodri Howells See fewer	Keeping Faith (2017)
Alex Harries Arthur Davies Arthur Davies See fewer	Torchwood (2006)
Aneirin Hughes Tom Howells Tom Howells See fewer	Cameleon (1997)
Catherine Ayers Lisa Connors Lisa Connors See fewer	Keeping Faith (2017)
Boryana Manoilova Diana Stefaniuk Diana Stefaniuk See fewer	Keeping Faith (2017)
Mark Lewis Jones Steve Baldini Steve Baldini See fewer	Gangs of London (2020)
Martha Bright Angie Baldini Angie Baldini See fewer	Keeping Faith (2017)
Charlie Spring Boxing Trainer Boxing Trainer See fewer	Keeping Faith (2017)
Suzanne Packer Delyth Lloyd (English) Delyth Lloyd (English) See fewer	Casualty (1986)
Hannah Daniel Cerys Jones (uncredited) Cerys Jones (uncredited) See fewer	Hinterland (2013)
Lacey Jones Megan Howells (uncredited) Megan Howells (uncredited) See fewer	Keeping Faith (2017)
Demi Letherby Alys Howells (uncredited) Alys Howells (uncredited) See fewer	Keeping Faith (2017)
Rhian Morgan Marion Howells (uncredited) Marion Howells (uncredited) See fewer	Apostle (2018)