When I was staying with a friend in Norway once we visited his mother, and to me she sounded like someone with a broad Durham/Newcastle accent (my mother is from there) speaking German. A lot of north east words are germanic, or Scandinavian. My grandfather was a farmer near Durham and pigs were swine, children were bairns.

As for American influence, my youngest daughter picked up a lot of that from Youtube at one point, and I once interviewed a girl from Gravesend with such a strong US accent I assumed she'd grown up over there.