The actor who plays Rakharo (can't remember his name at the moment, but the cute guy in the photo) and the actress who plays Irri, turned out to be by far the most "fluent" Dothraki speakers in the cast. I think they may have gotten their parts expanded due to this salient fact.

I took a detour to reread the two Points novels by Melissa Scott and Lisa Barnett (YAY!), but am back on track for my grand re/read of the entire Song of Ice and Fire series to date. I'm picking up right about the events of episode seven, I believe, so it's very timely.