I would like to if I could give him the Emperor's voice (dialog) but so far I can't figure out a way to do that. Right now he only has the stock imperial voice.
Well, i was more or less thinking of replacing the emperor′s features with is.
Or, you could copy the Urial NPC, strip him of the quests and Ai packages, and give him your features.
Or are all the dialoges and such handled like the Saints and Seducers are? relying on quest stages.