Has anyone ever managed to figure out who voiced Dagoth Ur in this game? I've seen this question posed many times over the years and never once have I received a satisfactory answer. I'd really like to know because the man has a voice unlike any other and I'd like to enjoy some of his other work if possible.

Hmm, I could not find anything conclusive either, but IMDb has two potential candidates. Jeff Baker is credited with the male Dunmer voice, and Wes Johnson is credited with Orcs / male Breton / and various gods voices. - http://www.imdb.com/title/tt0314015/

edit: Upon further review, Wes Johnson is also Lucien Lachance and Sheogorath. And if I recall correctly, Ur did not sound too much like Shiggy.

I would be curious to know this as well. I can't find anything conclusive online either.

I bet it's whoever did the male imperial voice.