[@The Fated Fallen] I mean, pretty sure the lore behind necromancy is the soul is trapped inside the body of the corpse and bound to the necromancer's will, nothing saying they couldnt develop a personality and your minions in Skyrim (who are usually freshly raised) can mutter and say stuff occasionally. TES lore is a little rusty in some areas so there could be another explanation (I don't think the Soul Cairne is linked to raising corpses?)

Edit: If anyone wants to talk character creation in PM's just drop me a message, working with a argonian from Cyrodiil and I need to explain how he gets to Hammerfell (the why is currently he spent some time working with the Worm Cult in Scourge Barrow before deciding he was getting treated more like a servant and snuck off in the dead of night before getting captured a week or so later, I believe the Worm Cult was still slightly active at that point as the wiki states they were active in the Third Era but became fully active in the late third. Unless someone has a specific date for the Worm Cult activity beginning I'm gonna go with that).