Name	Known for
Nerys Hughes Megan Roberts Megan Roberts See fewer	The Liver Birds (1969)
Huw Ceredig Rowlands (as Huw Cerredig) Rowlands (as Huw Cerredig) See fewer	Twin Town (1997)
Margaret John Gwen Harries Gwen Harries See fewer	Run Fatboy Run (2007)
John Ogwen David Price David Price See fewer	Doctor Who (1963)
Dyfan Roberts Shwn Rodway Shwn Rodway See fewer	Un nos ola' leuad (1991)
Sue Jones-Davies Mary Rodway (as Sue Jones Davies) Mary Rodway (as Sue Jones Davies) See fewer	Monty Python's Life of Brian (1979)
Rio Fanning Dr. O'Casey Dr. O'Casey See fewer	Relic Hunter (1999)
Ernest Evans Wil Hopkin Wil Hopkin See fewer	The District Nurse (1984)
Gareth Morris Bryn Morris Bryn Morris See fewer	Y Palmant Aur (1996)
Beth Morris Evalina Williams Evalina Williams See fewer	David Copperfield (1974)
Alan Downer Reverend Jarman Reverend Jarman See fewer	Triton (1968)
Ifan Huw Dafydd Rev. Geraint Rhys Rev. Geraint Rhys See fewer	Alys (2011)