Ira Behr was a big fan of Iggy Pop/Iggy and the Stooges, and had pushed for Iggy to be cast earlier in "Past Tense, Part II"; Iggy was unavailable at the time and the part went instead to Clint Howard.Believe it or not, I didn't know much of Iggy Pop when he was cast as Yelgrum, so I can't say there was any stunt casting.
No, Yelgrun was the other Vorta in "The Magnificent Ferengi".Yelgrun, was not he the back stabbing Vorta in Rocks and Shoals
The Vorta that was killed by the Ferengi and was programmed to walk but malfunctioned and kept on walking into the bulkhead..![]()
http://memory-alpha.org/en/wiki/Iggy_Pop