Name	Known for
Andrew Teilo Hywel Hywel See fewer	Baker Boys (2011)
Sara Gregory Eleri Eleri See fewer	Alys (2011)
Iestyn Jones Griffiths Griffiths See fewer	Keeping Faith (2017)
Victoria Plucknett Diane Ashurst Diane Ashurst See fewer	The Duchess of Duke Street (1976)
Jack Quick Rhys Rhys See fewer	Mabinogi-Ogi (2017)
Mark Flanagan Jinx Jinx See fewer	Magnolia (1999)
Jeremi Cockram Siôn Siôn See fewer	Y Palmant Aur (1996)
Elin Harries Dani (as Elin Lloyd Harries) Dani (as Elin Lloyd Harries) See fewer	Pobol y Cwm (1974)
Lauren Phillips Kelly Kelly See fewer	Dance of the Dead (2008)
Jonathan Nefydd Colin Colin See fewer	The Way (II) (2024)
Donna Edwards Britt Britt See fewer	Belonging (2000)
Yasmin Winkley Kylie Kylie See fewer	Pobol y Cwm (1974)
Siw Hughes Kath Kath See fewer	Pobol y Cwm (1974)
Nia Caron Anita Anita See fewer	Glanhafren IV, Episode 7 (1992)
Rhys ap Trefor Tom Tom See fewer	Torchwood (2006)
Sharon Roberts Gaynor Gaynor See fewer	Cowbois Ac Injans (2006)
Rosie Ekenna Esther Esther See fewer	Inside No. 9 (2014)
Bethan Ellis Owen Ffion Ffion See fewer	Anfamol (2023)
Dyfan Rees Iolo Iolo See fewer	Pobol y Cwm (1974)
Elyssa Stephens Greta (as Elyssa Stevens) Greta (as Elyssa Stevens) See fewer	Pobol y Cwm (1974)
Catherine Burns Liv Liv See fewer	Pobol y Cwm (1974)
Rhys Meirion Self Self See fewer	Pobol y Cwm (1974)