If you're looking for casting updates for a project (movie, series, etc.) related to "Backrooms" and involving someone named Mira, here are a few suggestions on where to find information:
Developers often use tags like #EscapeTheBackrooms or #BackroomsGame to announce open calls for voice actors or character concepts. mira backroom casting upd
If you are looking for the latest "upd" (updates) regarding Backrooms-style games that feature similar characters: Escape the Backrooms If you're looking for casting updates for a