Name	Known for
Nia Ann Elin Francis Elin Francis See fewer	Merlin and the War of the Dragons (2008)
Helen Rosser Davies Sara Sara See fewer	Y Palmant Aur (1996)
Owain Huw Guto Parri Guto Parri See fewer	Masters of the Air (2024)
Gareth Jewell Dylan Dylan See fewer	Alys (2011)
Rhianna Loren Luned Luned See fewer	Pobol y Cwm (1974)
Lois Meleri Jones Tesni Parri (as Lois Meleri-Jones) Tesni Parri (as Lois Meleri-Jones) See fewer	Dal Y Mellt (2022)
Caryl Morgan Izzy Izzy See fewer	Coronation Street (1960)
Osian Morgan Aaron Monk (credit only) Aaron Monk (credit only) See fewer	Under Salt Marsh (2026)
Jonathan Nefydd Colin Colin See fewer	The Way (II) (2024)
Jack Quick Rhys Rhys See fewer	The One That Got Away (2024)
Mark Stuart Roberts Mathew Mathew See fewer	Ordinary Lies (2015)
Andrew Teilo Hywel Hywel See fewer	Baker Boys (2011)