Hey, so, I've been struggling and drawing blanks regarding the details of the last two of the members of the "five man band" that composes my central cast (late into the planning and worldbuilding process I realized the original group of characters I had for the main character to hang around were way too normal and well-adjusted for the story I wanted to tell with him), and I was wondering if I could get some advice from writers here regarding how you make sure that your characters, as part of a group, will have good chemistry and dynamics with each other. Are there key social roles that you feel certain characters have to fill? Is there some other method you use when conceiving your main cast? Or do you just wing it and let the quirks of their personalities evolve over time and over the course of the rough drafts? I'm just concerned that I'm going to get too deep into the writing process and realize yet again that one or more of the characters are fundamentally flawed from a narrative perspective and don't work well with the rest of the cast.