Six of the actresses who have played “Sister” in the long-running Late Night Catechism—currently celebrating its 17th anniversary in a new venue, the Royal George Theatre, 1641 N. Halsted—will reunite for a special performance Saturday, May 30, at 8 p.m.

Lisa Buscani, Mary Zentmyer, Rosie Newton, Liz Cloud, Lisa Braatz and Margaret Kustermann will all play “Sister”—three in Act One and three in Act Two.

Tickets are $30 each; call 312-988-9000.