I only have Mortimer's sheet finished, it gets the job done, though also a bit of a tough one because he actually changes his design and some information slightly over the course of the story.
I don't mind sharing the basic information because it's a good refresher for the reader to know who, what, when, where, etc. and they might be forgetting things as they read the pages weekly, that's normal. However, it's only what I feel is useful to remember outside of a story context - it goes without saying, but the ref will never have Mortimer without gloves or braids until that subject is deal with in the comic itself. I also like to fill out Character Question prompts all over the internet but they're more for my use, because the objective is to make the reader be aware I know everything the character would do and write well, rather than answering every question about it.
