He's our most famous son - and he hasn't lost his Welsh accent either unlike some others (Catherine Zeta Jones springs to mind).
At first, I thought Sir Tom Jones accent was an English accent.
It's a bit hard to separate a English, Irish, Scotish accent unless you heard it daily and know the differences.
Catherine Zeta Jones is Welsh and I didn't know that either because she's from UK.
I don't think she did (I can't really tell the differences) because she still have that accent when she speaks.
To me Catherine Zeta Jones ... Whoa whoa whoa, She's a Lady