People on the internet are saying the ranting street preacher was Ed Tudor Pole of Crystal Maze fame. PRETTY COOL (not as cool as Richard O'Brien obviously.)
The weird thing is that, IIRC, Doreah (?) is supposed to have bought it in the Red Waste. What they're going to do with her alive & well in Qarth is anybody's guess.
Best line of the ep:
"Enough. Even torturing you is boring."