Thank you! I'm glad people think it will be of use. It's been in my head for a little while now, and hopefully it will be helpful if nothing else for the list of links. :)
They can. I might want to put a codicil on the list stating that they can be broken just like any rule. I've a few where I had actors who I'd always wanted to PB, but hadn't had characters, but I worry about people taking their favorite actor and using them for whatever role they want. And then turning them into the character that role is well-known for.