Thread:Lord Hyōga/@comment-3003805-20180325005537/@comment-4576906-20180325145329

Yes, we use "Notes" sections for footnotes on some articles. What you're describing would be closer to Trivia on episode articles. Otherwise, any information about a character like how they got a scar, their fears, etc. would go into one of the sections of their article, whether it be the biography section, the personality section, relationships, physical description, and so on.