[@Benzaiten] Well, specifically the role/s that need filling and how much I can get away with. :lol  

I have a couple of premade characters that I can slot in just about anywhere with a little bit of work and I have one character that's a back-up for one of my current campaigns that I might want to get into the mind of, but he comes with Conditions™️ that would decide if I play him in particular or not. It's me being fussy, basically.