And Flemish people have a totally different accent when speaking English than Dutch people. TO my ears most Dutch people have a distinct English accent; some more than others, but almost always identifiable as from Dutch origin.

Walter Lewin (as in e.g. https://youtu.be/sJG-rXBbmCc) is a quite extreme example, despite the fact that he has lived in the US since 1966. Carice van Houten (Melisandre in Game of Thrones) has it too but less pronounced.

I wouldn't be surprised to learn that Flemish people have a distinct English accent too, and that I simply don't notice it as much (being Flemish myself).

Germans speaking English are often recognizable as well.

> I wouldn't be surprised to learn that Flemish people have a distinct English accent too

Yes! One thing I sometimes notice is that, in Flemish we pronounce "wat is" as "wadis", and sometimes Flemish people in English will also say "Whad is". So Flemish people end up saying "Whad is dat?" instead of "What is that?". (Also lots of "eh?"s and the occasional "allez" pop up.)

As a Flemish person, I wouldn't say Flemish and Walloon have the same accent in English, but I guess I'm not the one to judge. What is funny though, is that _in English_, you can sometimes detect different Flemish accents, i.e. when someone is speaking in English, I can tell whether they're from West-Flanders, from Antwerp, or from Limburg (in the east of Flanders). Their typical Flemish accent seeps through in their English. Also, the Dutch have the same accent in English as they do in Dutch (compared to the Flemish variant of Dutch).

French R and soft G are shared among other things between the French and people from the South of Holland and below.

Godfather was Walloon, ex-roommate was Flemish. Very different accents when speaking English - my godfather sounded like a French person, the Flemish roommate could be mistaken for a Scandinavian ... also notable that he sounded nothing like a Dutch person, who in my experience have very good British or North American "clean" accents.