 He played the lead role of Trefor the taxi driver in "Gwlad yr Astra Gwyn", for which he received a BAFTA Cymru nomination as best actor in 2013, and was the original Rapsgaliwn.In 2016-2017 he appeared in a regular role in the drama "Byw Celwydd".Meilir has toured with numerous theatre companies including Theatr Genedlaethol Cymru, Theatr Fran Wen and Bara Caws.