[quote=@Crimson Raven]Edit: [@tsukune] What about multiple characters? It would make long posts easier.[/quote]
For starters only one playable canon character per person, more will be allowed only if the GMs find you have enough creative drive to handle more.

Within your character arcs you can include notable NPCs, bosses that closely relate to your character based on canon, and once you established your arcs you can also make up your own OC side characters and monsters to enrich your miniworld.