JB JB's wife, SarahMr. Zuss/GodNickles/Satan
Those people who actually take part in the action or whose existence is talked about are included in the term 'characters' of a play.
Scout in to kill a mockingbird? It's more of a pageant than a play but she dresses up as a ham.
midsummers nightdream
A Midsummer Night's Dream, aka Robin Goodfellow