Name	Known for
Nerys Hughes Megan Roberts Megan Roberts See fewer	The Liver Birds (1969)
Freddie Jones Dr. Emlyn Isaacs Dr. Emlyn Isaacs See fewer	Dune (1984)
Nicholas Jones Dr. James Isaacs Dr. James Isaacs See fewer	In the Heart of the Sea (2015)
Christine Pollon Dilys Humphries Dilys Humphries See fewer	Romeo and Juliet (1962)
Janet Aethwy Ruth Jones Ruth Jones See fewer	Patagonia (2010)
Owen Garmon R.T. Williams R.T. Williams See fewer	The Proposition (1996)
Iola Gregory Matron Matron See fewer	Cravings (2006)
Carol Holmes Marie Anderson Marie Anderson See fewer	Milk & Money (1996)
Clive Merrison Dr. Gray Dr. Gray See fewer	The History Boys (2006)
Robert Bathurst Christian Christian See fewer	Cold Feet (1997)
Betsan Llwyd Josie Young Josie Young See fewer	Keeping Faith (2017)
Paul Dalton Alec Young Alec Young See fewer	Final Run (1988)
Stewart Jones Selwyn Jones Selwyn Jones See fewer	Oed Yr Addewid (2001)
Dic Hughes Bert Williams Bert Williams See fewer	The District Nurse (1984)