With speaking only it shouldn't be hard to differentiate who's who. I don't think all the brits sound the same (irish, southern, northern, scottish all in there) nor do the europeans (dutch, austrian, german, spanish, greek, swedish, danish and norwegian all in there, all unique).
I don't even think us swedes sound similar. I could try to speak more swenglish when leading if that helps to make me stand out, I guess.
Anyway, I will try to be more clear, but this issue is not leadership only.
My accent comments were mildly tongue in cheek - and you probably do have a point about me being a bit new!
"Swans are so big, they're like the Ostriches of the bird world"