Name	Known for
Fflyn Edwards Gwyn Griffiths Gwyn Griffiths See fewer	Venom: The Last Dance (2024)
Kezia Burrows Glenys Griffiths Glenys Griffiths See fewer	Doctor Foster: A Woman Scorned (2015)
Matthew Gravelle Ivor Griffiths Ivor Griffiths See fewer	Broadchurch (2013)
Melanie Walters Nain Griffiths Nain Griffiths See fewer	Submarine (2010)
Ava Clancy Young Nain Young Nain See fewer	The Goes Wrong Show (2019)
Dion Mason Jones Alun Lloyd Alun Lloyd See fewer	The Snow Spider (2020)
Macsen Forrest Gary Pritchard Gary Pritchard See fewer	Itopia (2022)
Jonah Kelly-Fisher Dewi Davies Dewi Davies See fewer	The Snow Spider (2020)
Iwan Rheon Gwydion (voice) Gwydion (voice) See fewer	Game of Thrones (2011)
Mali Jenkins Bethan Griffiths / Eirlys Bethan Griffiths / Eirlys See fewer	Amser Maith Maith Yn Ol (2018)
Eva Ossei-Gerning Nia Lloyd Nia Lloyd See fewer	House of the Dragon (2022)
Carli De'La Hughes Rhiannon Lloyd Rhiannon Lloyd See fewer	Freestyle (2010)