INTJ fictional characters: Snape of Harry Potter, Batman, Palpatine of Star Wars, Katniss of Hunger Games, Moiraine of Wheel of Time, Ripley of Aliens, Gandalf of Hobbit and Lord of the Rings, Loki, Hannibal Lecter of Silence of the Lambs (I know some will debate some of these but there is sufficient evidence to support that they all embody INTJ.)
Being the villain isn't bad really, it's just that most of the INTJ characters are basically robots and talk monotoned. No one talks about the ones like Bruce Wayne from Batman, or Matt Murdock from Daredevil. Both are INTJs with personality.
INTJ When I took the test I was 100% introvert (haha), 38% Intuitive, 56% thinking, and 22% judging. Most of these describe me pretty well, except for the debating one. I HATE arguments, and if one starts, I'll usually walk away. Also, I see some of these as flaws that I'm trying to overcome...I'm working on my people skills ;)