List of unnamed Zelonites.
Conference officials
These two Zelonite officials were present at the Camp Khitomer conference in 2293. They sat in the first row and witnessed the assassination attempt on the Federation President. (Star Trek VI: The Undiscovered Country)
It's A Wrap! sale and auction sold parts of the costumes on eBay and gave continuity photographs during the production as source for this name. [1]
Male Ambassador
Present at the Khitomer Conference. (Star Trek VI: The Undiscovered Country)