Last night I asked your opinion on who Bruce Spence will play, and boy did I get a response! My mailbox was packed with HUNDREDS of emails from all you good TORNadoes with your opinions. After reading them all, I find that we were wrong, Bruce Spence will most likely be playing the
Mouth of Sauron. Here’s a sample!

I think what is meant by “Black Lieutenant” is either Khamul, second in command of the Nazgul, also called the Lieutenant of Dol Guldur, or, more likely, the individual known as the “Mouth of Sauron”, who appears at the Black Gate before the last battle bearing the, “… dwarf coat, elf cloak, and blade of the downfallen West…” which were stripped from Frodo while he was captive.

Thanks to everyone for sending their 2 cents!