Below is a link to a publicly editable Google Doc, with the names, brief descriptions, and links to appearances of the most popular/frequently recurring characters in YAWYW. Feel free to use it as a reference for characters you meet, but please do not consider it to be a complete work; add new characters to the sheet once they've recurred frequently enough, and update descriptions if you feel they are inaccurate.
https://docs.google.com/document/d/1-y1fgsCoVPyjcrho5ouo9o-L2XQiEMkUEsp4ylj557o/edit?usp=sharing
