"Trouble in Mind" by Alice Childress, at Playmakers Repertory Company in Chapel Hill, N.C., through Feb. 8. Pictured: Kathryn Hunter-Williams. (Photo by Jon Gardiner)

Onstage This Week: Jan. 26-Feb. 2

This week’s characters onstage include kings, princes, heiresses and saints, as well as composers, actors, explorers—and some everyday folks.