Zach Theatre, 1510 Toomey Road, Austin, celebrates its 85th season this year. As one of the ten oldest regional theaters in the United States and the oldest continually running theater in Texas, Zach Theatre serves more than 100,000 people through theatrical productions and 60,000 through education. Its 2017-2018 season begins Sept. 27 with the musical “Singin’ in the Rain”. 512-476-0541. www.zachtheatre.org