Sheen is most best known for playing Tony Blair, an Englishman (or maybe a Scotsman if you go back far enough, but by no means a Welshman) and perhaps Martin Whitley, a fictional American murderer (also not Welsh), in a Fox series.
Those Welshmen should stick to mining their own anthracite. And how come he has no beef with the “Welshmen” in Zulu. Were they really Welsh, or just good singers?