The Major Character Dissection: a writing aid for all fiction creators, from fantasy authors to comic writers. A helpful guideline tool for anyone who wants to create well-rounded, plot hole-free casts
This is an incredibly thorough questionnaire for your major characters. There's a reason I call it a "Dissection." I've already posted the minor character sheet for all those people you don't need to know the favorite foods and alcohol tolerances of. These are all geared toward protagonists, but can be applied to villains too.
Text in [brackets] is just for clarification of how to answer the preceding question. I will warn you that some of these explanations are exceedingly long: the ones regarding the Myers-Briggs personality type, and the one about love languages. They are long so as to explain the concepts to those unfamiliar with them. Also, since I hate writing "him or her" and I will not write "they" when the subject is singular, I am assuming masculinity in my clarifications. Y