Then got word that Heidi's mom had had a stroke, and was in hospital.
Some time later, got word that the stroke wasn't completely debilitating. Shortly after that, got word that she was going home.
So, Heidi's mom is home. It was a small stroke, and prognosis is very good. She and Heidi's dad live in a seniors' apartment building, with nursing on-site and so forth.
I have had no word on the actor yet. It axed the play, though; a two-person cast doesn't work well with one person missing.