I read yesterday (in a German newspaper, incidentally) that Netflix produces its recent shows in 26 languages... It has to mean dubbing, right? Subtitles wouldn't make a headline.
It's a pretty sure bet that one of those is German, but I'm wondering what the chance of Welsh is. Pretty slim, probably, since Netflix is also apparently available in 190 countries, many with their own language... Although a lot of them would also be either English- or Spanish-dominant, I suppose. Or Arabic... And German, of course.

At least 5 countries that I can name.