I agree Glasgo about "vocal fry" had to Google it when I first heard the term on MN. I could never listen to Hugh Laurie's croaky voice he acquired for "House" set my ears on edge too.
Years ago when The Beatles put England on the world stage as far as talent was concerned, I like many others fell in love with their accents, I was a junior school kid at the time but had never heard anyone else talk quite like them, to my young ears their accents were not only unique but music to the ears along with their actual music. Moving on, a couple of decades later, for a while I watched "Brookside" set in Liverpool and have to say didn't like the overriding prevalent accents, probably best personified by an actress at the time "Jennifer Ellison" can't remember the role she played, but her and her sister in the series particularly, well put it like this, couldn't listen to them for too long! There you are one city, umpteen intonations.