"Sister Act," by Bill and Cheri Steinkellner, Douglas Carter Beane, Glenn Slater, and Alan Menken, at Charleston Stage Company in Charleston, S.C., through April 30. Pictured: Lara Allred, Aleah Vassell, and Camille Corinne.

Onstage This Week: April 24-30

From the oceanside to the swamp, from Charleston, S.C., to Portland, Ore., it is another varied week of performances.