Each portion of the show arrives as a very high quality, individually-recorded sound file, right? Hopefully, not MP3…
If your only show work is a mixed final from all the performers, you can stop reading now. It’s hopeless.
There may be a way to partially rescue that one voice file. There are tools to get rid of pops and clicks in a phonograph recording. The “car hair” filter. And there are unpublished tools that can be used to get rid of lip smacks or “wet mouth noises” (I love that phrase). It’s worth experimenting with those in order to save the show.
https://forum.audacityteam.org/t/updated-de-clicker-and-new-de-esser-for-speech/34283/1
http://manual.audacityteam.org/man/tutorial_click_and_pop_removal_techniques.html
Koz