I know, his control freakiness is hot as fuck.
His adherence to tradition and propriety screams Fe or Si, IMO. So he would either be IxFJ or ISTJ, I think.
I see nothing about him that is spectacularly Ni, honestly.
And the more I looked at the arguments for his seeming lack of projected warmth, ISTJ made more sense.
He's quite ethical, I'll say that, and he's very fierce about it, but it could be Fi ethics.