Name	Known for
Sara Gregory Alys (as Sara Lloyd-Gregory) Alys (as Sara Lloyd-Gregory) See fewer	Alys (2011)
Zachary Mutyambizi Daniel Daniel See fewer	Alys (2011)
William Thomas Wiliam Wiliam See fewer	Torchwood (2006)
Aneirin Hughes Toms Toms See fewer	Cameleon (1997)
Gillian Elisa Heulwen Heulwen See fewer	Sherlock (2010)
Ifan Huw Dafydd Ron Ron See fewer	The Indian Doctor (2010)
Shelley Rees Debbie Debbie See fewer	Svengali (2013)
Kate Jarman Angie Angie See fewer	Diwrnod Hollol Mindblowing Heddiw (2000)
Rhys ap William Chris Chris See fewer	The Indian Doctor (2010)
Aled Pugh Kevin Kevin See fewer	Stella (2012)
Carwyn Glyn Shane Shane See fewer	Under Milk Wood (2015)
Catrin-Mai Huw Ceri Ceri See fewer	Xenoblade Chronicles 2 (2017)
Delyth Wyn Bessie Bessie See fewer	Child of Love (1987)
Menna Trussler Moira Moira See fewer	Pride (I) (2014)
Simon Fisher Gyrrwr Tacsi Gyrrwr Tacsi See fewer	Alys (2011)
Gareth Nash Iestyn Iestyn See fewer	Alys (2011)
Margaret John Mrs. Edwards Mrs. Edwards See fewer	Run Fatboy Run (2007)
Geraint Lewis Tafarnwr Tafarnwr See fewer	A Mind to Kill (1994)
Robert Gwyn Davin Headmaster Headmaster See fewer	First Knight (1995)
Marlene Griffiths Sylvia Sylvia See fewer	The Tulse Luper Suitcases, Part 1: The Moab Story (2003)
Caradog Rhys Alex Alex See fewer	Alys (2011)
Lloyd Everitt Brawd Mike Brawd Mike See fewer	Alien: Earth (2025)
Marcus Smith Mike Mike See fewer	Alys (2011)
Dave Wong Tshinc Tshinc See fewer	Skyfall (2012)