Okay...I've found a few threads online of people comparing their MBTI types to the kinds of characters they play. However, I have yet to find any threads debating the MBTI types of in-game characters. Here are some of the ones I've been wondering about...
Arengir (the lead Greybeard, whose exact name I can't remember off the top of my head)
Delphine (I'm thinking probably ISTJ)
Nazir (He strikes me as an ExTx or something like that, probably a P)
Mjoll the Lioness (and Aerin)
Jenassa (the Dunmer merc you can hire at The Drunken Huntsman in Whiterun)
Brelyna Maryon (that one shy Dunmer mage you can help at the Winterhold College)
Jaree Ra (the Argonian who convinces you to put out the lighthouse fire near Solitude so they can loot a ship)
These are just some of the ones I'm wondering about. Any ideas? Any others you've been wondering about?