I thought I might share a small phonetic game/challenge with you. All 3 individuals in the attached clips were born and raised in the same non-Anglophone country and speak the same native language. Can you tell, based on the peculiarities of their English pronunciation, what language it is?
That takes out British, Danish, Norwegian, & German.
If they studied British, I want to say either African, or Russian. Otherwise I can’t tell the accent.