Final answer:
In a theatrical production, the staging area's setup and operations are determined by the director, actors, stage crew, and stage manager. These individuals are responsible for establishing blocking, managing the stage during the show, and ensuring safety and efficiency behind the scenes.
Step-by-step explanation:
In a theatrical setting, determining 'upstage' is crucial for establishing the blocking, which is the precise movement and positioning of actors on stage. This is agreed upon by the director and the actors. Once the show is built and ready to open, the Stage Crew, consisting of backstage technicians, is responsible for operating stage fly systems, moving scenery and props, and maintaining a safe environment on the stage. Finally, the stage manager is in charge of running rehearsals and, upon the show's opening, the show itself. The stage manager typically has a minimum of two assistants to help with these tasks.