Harry Potter, J.K. Rowling
Dominant Ni: The moment Voldemort knows what he wants, he’s already going after it in a methodical, complicated fashion. At the same time, he’s patient enough to do the research (horcruxes!) necessary to accomplish what others would think impossible. He has one goal (immortality and total control) and his every action leads him towards that goal.
Auxiliary Te: Tom Riddle is action-oriented. All of his feelings come out in what he does, rather than what he says. He organises and manipulates others to achieve the ends he needs, saving his personal energy to completing the most necessary tasks (horcruxing!). He develops plans and puts them into action without hesitation. He doesn’t care about anyone but himself and cannot be insulted.
Tertiary Fi: Voldemort doesn’t really have much of a moral code –internal or external. What he has is a how-will-this-benefit-me conundrum. He thinks of himself as a victim to abandonment and reacts with revenge. He doesn’t care about anyone else’s feelings and doesn’t want to listen to them. He doesn’t know how to love because he’s so consumed by hate that he can’t imagine anything else –and he can’t understand other people’s feelings either. The only people he can relate to are those who have similar experience.
Inferior Se: Voldemort doesn’t always think before he acts and ends up creating long-lasting negative consequences (Harry survives his attempt to kill Lilly and becomes a flaw in his plan). He likes theatricality about as much as Batman does, but has much stronger tendencies toward instant, self-indulgences. The result, Harry survives again and again…