A lap dance (like Monique performs in the movie) is not usually offered anywhere in the Red Light District, but rather a typical American form of erotic entertainment.
Jörgen Raymann, who plays Dr. Sunil in the Thai segment, is a very well known Dutch comedian and television host.
While it's never made unambiguously clear in the film, the main villain Gunter is probably German. His name is uncommon in Holland but regular in Germany, he uses several German slang words in his final scene and the coin he regularly flips is a rather obscure German 2005 reprint of an old 5 mark coin bearing the German eagle and the name and image of 'Friedrich Schiller'.
