TAKE A CLASS!
Our next session of classes starts the week of April 28th, 2025 and meets weekly for 8 weeks, with each class session lasting 3 hours. All iO students also receive a Student ID that grants them access to iO shows for FREE (some restrictions).
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Longform Improv Classes
The iO Training Center Program is a five level, year long program that has been taught in Chicago for over 40 years, and has inspired countless schools of improv all around the world.
Our improv classes are designed for students of all level and skill. Whether you have years of performance experience under your belt – or you’re brand-new to this whole thing – our longform improv program will teach you the skills and techniques to develop your voice, style and unique form of self-expression. Click the each drop down below to learn more about the goals and curriculum of each of the five levels.
Seeing shows is just as important as attending class. That’s why every student also receives an iO Student ID which grants access to ALL iO shows for free for the duration of your class.
We are committed to creating an inclusive, welcoming environment where students can learn and practice the art of longform improvisation. Students of all abilities and backgrounds are encouraged to try longform improv! If you’ve never taken an acting class, or don’t think you’re “funny” enough – that’s great. Come try improv at iO. There are no prerequisites to create something that has never been seen before, and will never be seen again.
Classes are 3 hours long, and meet once a week for 8 weeks. All classes are held in-person at iO Theater, unless specifically noted otherwise.
2025 TRAINING CENTER SCHEDULE
Session 1: January 6th – March 2nd
Session 2: March 3rd – April 27th
Session 3: April 28th – June 22nd – Registration Now Open!
Session 4: June 23rd – August 24th
Session 5: August 25th – October 19th
Session 6: October 20th – December 21st.
Spring 5 Day Intensives: March 24th-28th
Summer 5 Week Intensive: July 7th – August 7th
Summer 5 Day Intensive: June 9th – 13th & August 11th – 15th
Teen 5 Day Intensive: June 23rd – June 27th
Fall 5 Day Intensive: October 2oth – 24th
Winter 5 Day Intensive: December 15th-19th
Intensive Programs and Teen Programs
For those who don’t live in Chicago, or those seeking a condensed learning experience over a shorter period of time, iO Theater offers a variety of seasonal intensives.
Our Summer Intensive is a 5 week, 4 day a week, 6 hours a day program designed to cover everything from our regular training center program. Students of all background and experience level are welcome to sign up.
Alternatively, iO also offers short 1-week intensives in the winter, spring, summer, and fall. These are designed as program overviews of our entire curriculum and are suitable for both beginner improvisers as well as advanced.
Email us with any and all your questions about travel, lodging, and studying at iO for any of the intensive programs listed. We are here to help.
Intensive Programs
Summer Intensive Program
2025 5 Week Intensive: July 7th- August 7th, 2025
Registration now open!
This immersive 5 week experience also overlaps with our annual festival, iO Fest, which will take place July 24th-July 27th. All of our summer intensive students receive a free GA wristband with their intensive registration.
Summer One Week Intensive
2025 Summer 1 Week Intensives:
Early Summer: June 9th – 13th
Late Summer: August 11th-15th
Registration now open, sign up HERE.
Fall One Week Intensive 2025
2025 Fall 1 Week Intensive
October 20th-24th
Registration now open, sign up HERE.
Winter Break One Week Intensive 2025
2025 Winter 1 Week Intensive
December 15th-19th
Registration now open, sign up HERE.
Spring Break One Week Intensive
Teen Programs
Teen One Week Intensive
Week long intensive camp-like-class is ideal for teens interested in honing their comedic chops and getting a crash course in the world of Chicago improv! This intensive meets onsite at the historic iO Theater in Lincoln Park and runs 10am to 4pm Monday through Friday (lunch break at 12:30pm each day) and culminates in a showcase open to friends and family at 5:00pm on Friday, June 27.
2025 1 Week Teen Intensive
June 23rd-27th , 10am-4pm.
Registration now open!
iO Theater and Mudlark Theater Present: Teen Comedy Intensive
Live on the north side, but still want to take your comedic performance skills to the next level and perform at one of the most iconic comedy theaters in Chicago? Well, look no further than the Teen Comedy Intensive! This program is for rising high school freshmen through rising seniors passionate about improv and comedy. Train with an iO Theater instructor at Mudlark Theater in improv, sketch, and comedic points of view for a well-rounded and hilarious comedian tool-kit. Teen Comedy Intensive will conclude in a showcase on Saturday, August 2nd at 4pm at iO Theater performing improv and sketches elevated within this 2-week program.
July 21st- August 1st, 3pm-5pm.
Level 1: Intro to Longform
Level 1 introduces students to all of the concepts necessary to become adept improvisers and performers. Students will learn how to build and apply the basic fundamentals of improvisation through a series of exercises, games, and storytelling. Level 1 is the appropriate starting point for the inexperienced student, but even those with some improv or theater experience will find value in the lessons of Level 1. The class will culminate in students learning and performing iO’s signature piece, The Harold, one of the most sophisticated and rewarding forms of pure improv ever created.
While ‘Yes, And’ is the guiding ethos in improvisation, students will go above and beyond that simple principle and learn how acceptance, agreement, honesty, connections, listening, and commitment will help them discover the truth in comedy. Our expert instructors foster a safe and joyous environment for students to play, experiment, and relish in the experimentation of improv.
Level 1 is an 8-week course that meets once a week for 3 hours. At the end of the term, each class will have a short 10-minute performance demonstration open to the public.
Monday Evening (Session 3 – 2025)
Starts Monday, April 28th
7pm-10pm
Tuesday Evening (Session 3 – 2025)
Starts Tuesday, April 29th
7pm-10pm
Wednesday Evening (Session 3 – 2025)
Starts Wednesday, April 30th
7pm-10pm
Thursday Evening (Session 3 – 2025)
Starts Thursday, May 1st
7pm-10pm
Saturday Daytime (Session 3 – 2025)
Starts Saturday, May 3rd
12pm-3pm
Level 2: Character, Environment, and Teamwork
Level 2 expands upon the principles explored in level 1 and teaches students the skills to make strong, bold and committed choices to elevate their characters, scenes, and performances. This level focuses on the importance of creating something artful and beautifully compelling on stage, challenging students to be more than just talking heads in their improvisation. Students will be engaged in exercises that encourage them to use physicality, environment, and stage picture to inspire their improvisation and raise the status of their improv from simple games and scenes to high performance art.
The principles of Level 2 separate iO’s training center from other improv schools by focusing on bold decision making and group support. Students will work together to commit to each other’s choices and elevate those choices, creating truly unique and inspiring moments of improvisation.
Level 2 is an 8-week course that meets once a week for 3 hours. At the end of the term, each class will have a short 10-minute performance demonstration open to the public.
Monday Evening (Session 3 – 2025)
Starts Monday, April 28th
7pm-10pm
Tuesday Evening (Session 3 – 2025)
Starts Tuesday, April 29th
7pm-10pm
Thursday Evening (Session 3 – 2025)
Starts Thursday, May 1st
7pm-10pm
Saturday Afternoon (Session 3 – 2025)
Starts Saturday, May 3rd
12-3pm
Sunday Afternoon (Session 3 – 2025)
Starts Sunday, May 4th
12-3pm
Level 3: Scenework
Level 3 redirects the focus back on to the essential building block of longform improvisation, the two person scene. The exercises in this level will help students slow down and find grounded real points of view and relationships to explore in their scenes. Rather than act like cartoon characters, Level 3 helps students understand that by listening and reacting to what someone is saying to them, they can create compelling and emotional scenes that will naturally evolve into comedy. Students will learn to develop the natural instincts that will help their scenes flourish and connect with audiences and will receive individualized feedback from their instructor about their strengths and opportunities for growth.
‘Every line is golden and every detail is golden.’ The principles of level 3 help reassure students that they already have everything they need to create a great scene. Students will stop “inventing” and start truly improvising with guidance on how to respond with real emotions and committed character choices.
Level 3 is an 8-week course that meets once a week for 3 hours. At the end of the term, each class will have a short 10-minute performance demonstration open to the public.
Monday Evening (Session 3 – 2025)
Starts Monday, April 28th
7pm-10pm
Tuesday Evening (Session 3 – 2025)
Starts Tuesday, April 29th
7pm-10pm
Thursday Evening (Session 3 – 2025)
Starts Thursday, May 1st
7pm-10pm
Saturday Daytime (Session 3 – 2025)
Starts Saturday, May 3rd
12pm-3pm
Level 4: Longform
Level 4 synthesizes the lessons from all of the previous levels and allows students to begin creating longform pieces that are cohesive, thoughtful, and artistic. Students will learn a variety of classic longform pieces in an effort to understand how structure can inform their art. Each form taught will offer students an opportunity to learn how a form can be a motivator of creativity and authenticity, and not just a rigid structure to adhere to. The skills in this class will help students perform longer sets and will encourage true improvisational exploration of ideas, concepts, and thoughts–urging students to actually say something with their art.
Learn the rules, obey the rules, then break the rules. Additional focus will be given to iO’s signature longform style, The Harold. Developed and performed at iO for the last 35 years, the Harold is now taught and performed all over the world and is a sophisticated and rewarding form that lends itself to all styles of improvisation. Students will learn the intricacies of performing the Harold with the understanding that the form is just a launching point for inspiration and not a destination in and of itself.
Level 4 is an 8-week course that meets once a week for 3 hours. At the end of the term, each class will have a short 10-minute performance demonstration open to the public.
Monday Evening (Session 3 – 2025)
Starts Monday, April 28th
7pm-10pm
Tuesday Evening (Session 3 – 2025)
Starts Tuesday, April 29th
7pm-10pm
Thursday Evening (Session 3 – 2025)
Starts Thursday, May 1st
7pm-10pm
Saturday Afternoon (Session 3- 2025)
Starts Saturday, May 1st
12pm-3pm
Level 5: Advanced Longform
Level 5 pushes students into a true ensemble mindset and challenges the groups to create their own unique longform piece. Inspired by their work in Level 4 and all the previous levels, students will work together under the guidance and assistance of their instructor to brainstorm and generate a new, unique form that will be performed on stage. This level allows for a lot of personalized notes and diagnostics from the instructor and really helps students grow as individuals while also operating in an ensemble state of mind.
At the end of this 8 week course, the students will spend the following 8 weeks performing their devised piece on stage at iO every Sunday night. Following the completion of level 5 and their performances, all iO graduates will be eligible to audition for the House Team program at iO, allowing for the opportunity to continue their education and performance opportunity on a coached ensemble with weekly shows sponsored by the theater.
Monday Evening (Session 3 – 2025)
Starts Monday, April 28th
7pm-10pm
Tuesday Evening (Session 3 – 2025)
Starts Tuesday, April 29th
7pm-10pm
Saturday Daytime (Session 3 – 2025)
Starts Saturday, May 3rd
12pm-3pm
Workshops and Specialty Classes
Looking to work on a specific improv skill? Interested in trying some sketch or pilot writing? Friends and alumni of iO are always offering different workshops through our training center. Class lengths and number of meetings vary by each class, so learn more about our different workshops below.
Check back frequently as our workshop offerings are always changing.
Writing
Online Class: SNL Sketch Packet with Kim “Howard” Johnson
Create at least eight separate sketches, suitable for submission to literary agents, TV producers, network executives, not to mention SNL itself.
This class starts Sunday, April 27th at 12pm and meets for 8 weeks. The class meets virtually once a week for 2 hours and 40 minutes. Register and learn more HERE.
Online Class: Pilot Presentation with Kim “Howard” Johnson
This class starts Sunday, April 27th at 3pm and meets for 8 weeks. The class meets virtually once a week for 2 hours and 40 minutes. Register and learn more HERE.
Improv Workshops
BATSU! Dojo
Step into the dojo and unleash your inner comedy warrior, harnessing the power of laughter as your ultimate technique.
Class starts April 30th, 7pm-10pm and meets for 6 weeks.
Register and learn more HERE.
A Swim in a Scene on the Stage
- seasoned improvisers who prefer to think about improv as art,
- fans of Russian literature and/or George Saunders,
- people who tend to overanalyze things.
Class starts May 1st, 6pm-8pm and meets for 8 weeks.
Register and learn more HERE.
Musical Improv (Session 3 2025)
iO Music Improv Level 1M
Level 1M introduces you to the tools and techniques used to craft high-quality improvised songs. Over the course of 8 weeks, you will learn how to create melodies, lyrics, and rhymes in real time and to exhibit their storytelling skills through their singing, culminating in a performance at an end-of-session- showcase. By working as an ensemble, the class will improvise scenes that inspire songs, and build upon their existing improv skills to explore characters, stories, and worlds through enthralling musical numbers. Students who complete this level will be able to analyze, understand, and produce improvised songs that are not only entertaining, but also enhancements and expansions upon their scenework.
Saturdays May 3rd- June 21st
12:00pm-3:00pm
Register and learn more HERE.
iO Music Improv Level 2M
Level 2M invites you to explore more complex approaches to music improv, expressing the deeper meaning behind your songs and exploring more ways to collaborate and compose together as an ensemble. This level covers various different structures and styles of songs, and will allow you to further discover how your scenes can set the stage for emotional and compelling musical numbers. You will explore methods of finding the game of a song, making inspired musical choices, and bringing a sense of play and theatrics to their performances, which you will then display in an end-of-session showcase. Students who complete this level will be able to improvise songs in a variety of different styles while utilizing advanced techniques, and will deepen the connection between the story of their scenes and the purpose of their songs.
Saturdays May 3rd- June 21st
3:00pm-6:00pm
Register and learn more HERE.
Meet The Instructors

Jessica Rogers has been performing, directing, and teaching improvisation throughout Chicago and around the world for more than two decades. She facilitates corporate trainings and can be seen on Thursday nights playing with The Armando Diaz Experience.

James was born in Northern California but moved to Chicago to learn what this whole “winter” thing is. In his nearly 20 years of improv experience he has performed for The Second City, iO, The Annoyance, and any other stage in Chicago that will give him the chance. He currently can be seen with Clued In at Second City, Hitchcocktails at The Annoyance, The Armando and Whirled News Tonight at iO, and all over the country with his duo Jaymes Gretchky.

Bill Arnett is a faculty member at the iO Theater.

Emily Anderson (she/her) has been performing improv in Chicago since graduating from Northwestern University with a degree in Theatre and Creative Writing. She studied and later performed at iO, The Second City, and The Annoyance Theatre, and appeared at Lookingglass Theatre in Her Honor, Jane Byrne. She is also a faculty member at The Second City and has enjoyed leading workshops and classes across the country. At iO, she was mentored as a teacher by Susan Messing and Liz Allen, and is a cast member of Whirled News Tonight.

Brad Pike is a faculty member at the iO Theater.


Jonathan Lee-Rey is an actor, writer, and filmmaker from Yonkers, NY with a splash of the Bronx. Currently, he is based in Chicago where he is the Executive Artistic Director of Stir Friday Night, a teacher at iO theater, and the Community Outreach Manager of Stepping Stone Theater. Formerly he was on the iO Harold team Velvet and a member of Generation LatinX. He also made shorts with the iO Network team Free Trial Run.

Gretchen oversees professional development for iO and has taught improv around the world (and at Roosevelt University, where she is a professor in the Chicago College of Performing Arts). She grew up doing comedy around the city and currently performs/produces The Armando on Thursdays and Devil’s Daughter on Fridays, frequently traveling with her duo partner James Dugan (as Jaymes Gretchky.)



Zoe Agapinan is a California-born and Chicago-based actor and writer. She graduated from UC Santa Cruz with her degree in Theater Arts, and a minor in Economics (just in case!). She is an alumni of The Second City’s Severn Darden Graduate Program, and a 2022 Bob Curry Fellow. Zoe has been a house performer at the iO Theater since 2017 in long-running shows like FELT and Alterboyz, and with Harold Teams like Big Tobacco.






Leila Gorstein is an improviser, writer, and actor based in Chicago. Leila trained at iO Theater, Second City, and Annoyance for many years and performed around Chicago on the independent improv teams Alterboyz and Brady. Leila did long form improv at iO on the Harold teams Big Tobacco (RIP) and Artemis. You can check out what else Leila is up to at www.Leilagorstein.com
View all classes
Click to see a full list of all the classes and workshops currently open for registration.
Not ready to commit? Try our weekly drop-in!
Test it out and see how you like it! Our weekly 2 hour drop-in class offers a low stakes, fun way to try out improv for yourself! Taught by our best teachers- we think you’re going to love it!

Improv For All
Improv training isn’t just for performers dying to get on stage; the principles you’ll learn in our classes will apply to any area of your life where you work with other people.
At iO, we believe that the best art is informed equally by all perspectives in a group, no matter your experience in improv, comedy, or acting.
You don’t have to have theater or comedy experience to be a great improviser. Just the desire to learn. The fundamental building blocks of improvisation make us better listeners, coworkers, and family members, and friends.
Or, ask your boss to fund your improv journey! iO facilitators travel to workplaces of all sizes “on the organizational dime” to improve company culture because businesses see the inherent value of improv as a communication tool. Inquire with your HR representative if your company provides stipends for professional development and write us here geng@ioimprov.com if you need assistance applying for funds!
Award Winning Instruction
Our teachers are not only the funniest performers in Chicago, they all believe in the power of ensemble and that every student brings something unique to their classrooms. Our program attracts students from around the world because our instructors practice what they preach on stages every night of the week.


Curriculum 40 Years in the Making
Passed down through the hands of generations of improvisers, our program is the gold standard for long form improv training across the world. We treat comedy as art and believe in the power of group mind, authenticity in scenework, and in thematic exploration through the forms that define Chicago improv.
Curated Feedback
Our class sizes ensure plenty of performing opportunity and our teachers offer highly individualized insight tailored to your own journey as an improviser, classmate, and communicator.


INTERN AT iO!
Training Center Scholarship
Interested in taking classes but financial constraints or some other hardship preventing you from doing so? iO Theater offers 24 scholarships in full each year. Scholarships apply only to our Longform Improv Program and Summer Intensives, not workshops or specialty classes. Click below to learn more.

Open at 4:30pm M-F
Open at 11:30am on Sat/Sun.
How To Find Us
How To Get Here
iO is a five minute walk from the North/Clybourn Red Line and just two minutes from the 72 North Ave Bus. Limited free street parking is available nearby and several pay-to-park lots are located within one block.
FAQ
Have more questions? Check out our full FAQ page.