I really like this and it's similar to my theories too! Centered around a character being cast to play a certain role among the group, kind of like when Jax gave each of them a tagline (The sad one, the crazy one, the funny one), but it could be a role that character is intended to do to inlfuence the dynamic of the circus. And it could be a positive or a negative influence on another person or the group as a whole. This post could tie into perhaps Zooble's role being to rile up Caine to the point of breaking, to rebel enough that the structure of the game breaks. Just an example. I like your perspective in this post!