Hughes won a Best Actor BAFTA Cymru (or BAFTA Wales) for his appearance as Delme in "Cameleon" (1997), a Welsh language film. He appeared regularly in "Judge John Deed" as Neil Haughton and in "Young Dracula" as Graham Branagh. He played Harper in the TV movie "Harper and Isles" with Hywel Bennett and appeared in the 1998 film "The Theory of Flight" with Kenneth Branagh. More recently, he appeared in the S4C drama "Pen Talar" and in "Holby City" as Sir Fraser Anderson, and has also returned to the BBC Wales soap opera "Pobol y Cwm" as a new character, Morgan 'Moc' Thomas, whom he played from 2012 to 2013. He reprised the role in 2017. In 2012, he portrayed the politician and Welsh-language campaigner Gwynfor Evans in an S4C docu-drama, titled "Gwynfor Evans: Y Penderfyniad?" ("The Decision?").