Name	Known for
Osian Roberts Gwyn Griffiths Gwyn Griffiths See fewer	Emlyn's Moon (1990)
Siân Phillips Nain Griffiths Nain Griffiths See fewer	Dune (1984)
Sharon Morgan Glenys Griffiths Glenys Griffiths See fewer	Apostle (2018)
Robert Blythe Ivor Griffiths Ivor Griffiths See fewer	High Hopes (2002)
Rossilyn Killick Eirlys Eirlys See fewer	The Snow Spider (1988)
Gareth Pritchard Alun Lloyd Alun Lloyd See fewer	Screen One (1985)
Jill Richards Mrs. Lloyd Mrs. Lloyd See fewer	Very Annie Mary (2001)
Glan Davies Mr. Lloyd Mr. Lloyd See fewer	Coming Up Roses (1986)
Gillian Elisa Mrs. Davies Mrs. Davies See fewer	Sherlock (2010)
Ifan Huw Dafydd Mr. Davies Mr. Davies See fewer	Alys (2011)
Norman Comer Mr. James Mr. James See fewer	How Green Was My Valley (1975)
Noel Williams Doctor Doctor See fewer	The Old Devils (1992)
John McAvoy PC Price PC Price See fewer	The Snow Spider (1988)
T. Graham Williams Searcher Searcher See fewer	The Snow Spider (1988)