...or put in another way, the answer will depend on your perspective. Ask an American, and they'll say "They've got British accents" Ask a Scottish person, and they'll say "They've got English accents" Ask a person from the north of England, and they'll say "They've got southern accents" Ask a person from the south of England, and they'll say "They haven't got any accents at all. They just sound ordinary." It's all relative.

All three people have standard neutral English accents, and could come from London or anywhere in the south of England. The way that they speak doesn't belong to any specific region or social class.