iO Theater

iO Theater

Founded in 1981, iO (Formerly ImprovOlympic) is the world famous flashpoint of comic creativity that spawned an entire generation of America’s best and brightest entertainers. Over 5000 people have trained and performed at iO’s Chicago and Los Angeles theaters, including some of the most recognizable names in show business; Mike Myers, Chris Farley, David Koechner, Adam McKay, Tina Fey and many, many more.

Charna Halpern held a belief that improv was capable of more than the short games and competition-style shows that dominated the scene through the 1970s. It was then that she met legendary director and improv luminary Del Close. Their shared vision for a deeper, more robust form of improvisation based on trust and agreement would be rounded into shape and set in motion when they developed the Harold at iO (then ImprovOlympic). With Del serving as the mentor and Charna the guide, longform was born and the two would change the face of improvisational comedy.

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iO Theater


Specialty: Comedy Clubs, Performing Arts
Neighborhood: Lakeview
Hours: Monday - Friday Sunday 7:00 pm - 2:00 am, Saturday 7:00 pm - 3:00 am
Credit Cards: Yes
Parking: Metered street parking
ADA: Wheelchair accessible

There are shows at iO seven nights a week, so you don’t need to go anywhere else to be entertained.

General Info