Welcome to the iO Theater!
Founded in 1981 by Charna Halpern, with assistance from the late Del Close starting in ’84, the iO Theater has prospered as a comedy training center and performance venue.
Located a few doors away from Wrigley Field, iO is renowned for the performing and teaching of long form improvisational theater (including the house specialty, the Harold). With two theaters, two full bars and shows every single night of the week, you don’t need to go anywhere else to be entertained.
iO’s Los Angeles counterpart, iO West, opened in 1996.
All shows, prices and drink specials are subject to changes that may not be posted on this website.
All sales are final. No refunds or exchanges.