@buttercup do you mean like a template of a given character type (like here is your starting Nosferatu) or a specific individual with an established role and groups they are a part of like Arx and similar games?
I /think/ that due to the supposedly small number of supers in a given setting people would want to bring their personal touch to the story and character they play, and it would be extremely noticeable when one of three leaders of a group was switched out again.
I do wonder if there is a way and room for the idea of "faceless npcs" who have been around but get detailed when someone wants to come in.