It seems that whenever the casting director chooses an actor with a regional accent they seem to instruct them to 'exaggerate it a bit, for realism'. There was a series called Sutherland's Law in the 1970s, and the titular character was played by Ian Cuthbertson. This actor was born in Glasgow but his accent was not only a delight to the ear, but perfectly clear to anyone who is an English language speaker. This would never now as he sounded too 'posh'.
Interview with the economist billionaires fear: this is how we get a wealth tax

