With Voldemort/Tom Riddle, Dumbledore repeatedly says that Riddle never longed for companionship. Seems to scream out introversion to me. I've heard him typed as an INTP (wtf?), an INTJ and an ENTJ. After re-reading the books, it seems like Tom would have been an INTJ who, as Voldemort, has learned to masquarade and show outer qualities of an ENTJ. But doesn't the introversion/extroversion dichotemy have more to do with internal desires and needs rather than what one appears to the outer world? I would still type him as an INTJ, though possibly leaning towards more towards xNTJ.
Tee hee! When I read the books, I totally pictured Luna as an NF. Since she's a Ravenclaw, she'd probably have to have some level of proficiency with her thinking, but that doesn't mean it has to be dominant (I'd type Flitwick as an ExFP, based on the types of lessons he gives and the little we see him interacting in the books).
I have an extremely hard time seeing Ginny as an INTJ. She is quite flirty with the boys. I'd say ENFJ or maybe ENTJ. It would also fit in better with her family, as almost all the other Weasleys (we don't know much about Charlie) are extroverted.Originally Posted by OneWithSoul