Main Stage Improv's Adult Improv Classes

For Ages 18+ | Experience the Thrill of Improv Theatre & Comedy

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Be The Star Of Your Show

Are you ready to dive into the dynamic world of improv? Main Stage Improv’s Adult Improv Class is your gateway to mastering the art of spontaneous theatre! Join us for an exhilarating 7-week journey led by Garrett Gray a seasoned improviser, knowledgeable teacher and experienced team builder will empower you with the tools to succeed on the Improv stage.

What Comes With The Course?

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Garrett Gray

Meet Your Instructor Garrett Gray

Garrett Gray combines his rich improv background with a passion for teaching, ensuring a fun-filled, educational experience for all.

Garrett's Improv Experience:

  • Founder and Director of Main Stage Improv
  • Assistant Director of No Limit Laughs
  • Trained extensively at The Second City Chicago, Laugh Out Loud Schaumberg, and Comedy Sportz
  • Improviser for multiple improv troupes including Main Stage Improv, No Limit Laughs, 100% Gluten, Fourth Wall and DeLorean: An improv Team
  • Performed Improv in front of SOLD OUT audiences at The Second City, The Bit Theater, The Curtain Call Theatre and the Orland Park Cultural Center.
  • Won the 2023 Great Improv Throwdown Battle Royal
  • Co-Founder and Past President of Yes And Toastmasters speaking and improv club in Bolingbrook
  • Has a natural ability to see the strengths of each improviser and position them for success as team 

Pick Up The Following Tools For Success

What Others Say About Garrett's Improv Courses

Garrett Gray’s 7-week Improv Fundamentals Class was incredible. Garrett’s teaching style is fun, constructive, and always supportive.  His positivity is infectious. Your confidence grows with each class – from the activities and games that are designed to build on what you learn from week to week, to Garrett’s words of support during class, pointing out things you did well or were funny between classes, and to the amazing group of classmates who support each other and have a ton of fun with each week. I strongly recommend this class for anyone interested in challenging themselves and having a ton of laughs while they do it!

Mike Banker

Garrett Gray is the ambassador of laughter! His mission of spreading joy, positivity, and laughter through Improv is changing the world one game at a time! His instructional approach is hands-on and supportive. As a student, you will experience Improv as a team by jumping in, building comedic muscle and confidence. Join his adult improv class and make an investment in yourself. You deserve to experience the transformative power of laughter!

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Judy Wilk

Garrett initially introduced me to improv through Yes and And Toastmasters, and when I found out he was doing a 6 week Improv course, I jumped at the chance to learn even more! I highly recommend his Improv classes to the novice or the experienced Improv performer, because either way, you’re guaranteed to learn a lot, and have a blast!

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Dan Prochaska

I enrolled in Garrett’s 6-week improv course and I was pleasantly surprised by the incredible journey it took me on. The course content and structure not only met but far exceeded what I could have imagined. Each week brought a new dimension to my learning of the tools of improv! What truly set this course apart was the instructor, Garrett Gray, who shared his own insights and experiences from performing Improv onstage with various troupes. His authenticity and willingness to relate his personal knowledge and experiences made the learning process incredibly helpful and inspiring. He shared useful tips of the trade that help mold a group of improvisers into an improv TEAM! If you’re seeking a transformative Improv course to jump start your improv journey look no further than Garrett’s 6 week improv fundamental course! It will positively impact your life!

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Vineet Anand

Garrett’s improv course is the best around! So much fun! And, unlike many other introductory improv courses that focus on the very basics, Garrett will teach you the true fundamentals of performing improv. It’s taught in a very easy-to-learn manner, yet the course felt like an advanced improv class.

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Mark Avignone

The 2020 ‘Fundamentals and Characters in Improv’ course, taught by Garrett Gray was one of the best things I’ve ever done. Humor is tough, but Garrett makes it easy, and I am little bit funnier because of him. It taught me to how to safely run with scissors.

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Fouzia Khan

Garrett’s 7-week improv class in Orland Park has exceeded my expectations.  As a Toastmaster, I signed up thinking it would help elevate my public speaking skills and in just a few sessions I realized the training provides so much more.  I am learning how to be more present in the moment, how to actively listen, how to respond freely & authentically and how to make meaningful connections out of ordinary interactions.  The laughter filled environment created by Garrett and my fellow classmates allowed me to let go of my fear of failure and to simply have fun with the exercises.  Garrett’s teaching style is perfectly paired with improv too because he is enthusiastic, genuinely supportive and encouraging at both the individual level and to us as a team.  I highly recommend taking Garrett’s class to anyone looking for a unique opportunity for personal development.

Martha Sojka

I took Garrett’s online improv course and it was a game-changer in improving my ability to think on my feet. His improv classes are not just entertaining; they’ve given me invaluable skills in communication, quick thinking, and adaptability. I’ve seen his impact on others too—transforming even the most reserved individuals into confident communicators!

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Mike Scampini

Taking an improv class felt like a leap of faith, especially since I had no prior performing experience, but Garrett made me feel welcome and appreciated from day 1. The skills I learned in class helped me feel confident not only in my stage presence and humor, but also in my ability to think on my feet in stressful situations. I would recommend this adult improv fundamentals class highly to all who are interested. You won’t be disappointed!

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Malavika McGrail

Taking Garrett’s 7-week adult improv fundamentals class was an absolute delight. His wealth of knowledge in improv techniques combined with his positive and encouraging demeanor created an environment where creativity flourished. I felt empowered to step out of my comfort zone, embrace spontaneity, and build genuine connections with fellow classmates. Garrett’s guidance not only honed my improv skills but also instilled a newfound confidence in me both on and off the stage.

Dan Janousek

This adult improv class has brought out a different side of me I didn’t even know I had! I learned I’m kind of funny! Garrett is a master of bringing out the best in people, and getting to learn under him (and perform with him!) has been such an honor I won’t ever forget! His teaching style is ultra supportive, and even on bad days, going to this class made all the worries of the world melt away. This class is so inspiring and fun. Even when you feel like you can’t possibly be good at improv, Garrett is there to remind you that you can, will, AND kill it, too!

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Katie Jandeska

I had the privilege to participate in Garrett Gray’s online interactive fundamentals improv class. Structured as a zoom class, it had tremendous value as a learning experience, which is difficult to attain while not in person. Garrett created a safe environment lending itself to positive feedback and encouraging his students to take creative risks. His knowledge and professionalism were evident in teaching the fundamental techniques and core curriculum of improv. I totally enjoyed the class and walked away with a renewed sense of comedic performance. It was laugh out loud funny!

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Cassie Moore

Garrett’s improv class has “improv”ed my skill set and made life better! Signing up—I just wanted to improve the skill of speaking on my feet. And yet this class has been so much MORE! Not only do you learn to think and speak on your feet but you also learn object work to enhance communication, and active listening which in turn helps build relationships and leadership skills. And did I mention we laughed in class—A LOT—even out to the parking lot. Every night I drove away from class, my face would hurt from all the laughs and thinking about all the fun we had. Outside of class, I began seeing the new skills at play and a lightness of laughter and intention show up in other areas of my life. No need to go to Second City—Garrett’s an awesome improv instructor! He’s not only Second City trained but closer to home! He provides a safe space to learn, grow in different skill sets, and laugh. He also creates a culture that inspires, empowers, and encourages each of his students in their journey. I believe anyone can improve with Improv. I challenge you—don’t hold back—this class will change and “improv”e your life!

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Laurie Rusnak

Looking for a fresh, fun, and exciting environment to get out of your comfort zone, laugh hysterically, and just be in the moment? Garrett’s Improv class is it! Not only do you learn about the fundamentals of Improv but you discover things that you never thought you could do or saw yourself doing. Garrett is an awesome teacher who motivates and encourages his students to go beyond what they “think” they can do. He walks along side of you on the journey making sure you come out on the other side. Whatever your reasons are for taking the class (each person is different) you’ll be glad you did! There’s nothing to it, but to do it. Just say, “Yes, And!” Take the leap. I’m glad I did.

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Keisha Haley

If you want to have fun and try something new you must take Garrett’s Improv Fundamentals Class. He offers a positive, inclusive class environment. His passion for teaching and developing everyone’s strengths is truly an art. The class is structured with a weekly syllabus and suggestions for homework. All together, Improv fundamentals was an unforgettable experience.

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Kristen Nuñez

After taking Main Stage Improv’s Adult Improv Fundamentals Course, I am so impressed with Garrett Gray’s amazing teaching qualities including: Preparation – each class began with a handout for the material we would cover along with occasionally homework assignments; Adaptability – even though we were sometimes faced with location challenges, Garrett managed to adapt and overcome the hurdles; Positive Encouragement – Garrett ended each class be having members express positive feedback observations to each other and he also provided weekly specific encouragement to each student individually. I urge anyone seeking to stretch themselves, and have tons of fun doing so, to take one of Garrett Gray’s Improv classes. You won’t regret it!

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Bill McQuillan

I signed up for Garrett’s improv class to get out of my comfort zone and to have some fun.  I laughed my way through each class and learned a lot.  Garrett was a patient teacher and team builder and provided constant feedback and encouragement.  He worked with each person’s strengths to put together a fun graduation show at the end. If you are wondering if you should sign up for one of Garrett’s classes, the answer is YES!

Kristine Wszolek

I have wanted to take a class like this for a long time. After seeing Garrett and his group perform, I signed up right away for his 7-week Improv Fundamentals class in Orland Park when I saw he was teaching. Honestly, I was nervous in the lead up to the class, but Garrett did such a great job of breaking the ice and making us comfortable to learn. Our group laughs so much during class and we have really bonded. If you have ever considered trying improv or want to learn to be an active listener and get out of your shell, I HIGHLY recommend taking Garrett’s course! You won’t regret it!

Israel Smith

Improv for me was a bucket list item which I always wanted to do but never signed up for it. I found Garrett’s Main Stage Improv through my toastmasters class and I signed up for it. From the heart palpitating first class to an awesome graduation show, the journey has been fabulous. I could see changes in my professional life, I am able to articulate my conversations better than before without using filler words or struggling to put my thoughts into words. On my personal front, the improv classes were a blast. I enjoyed every minute of it and although it is no longer a bucket item for me, however, I am going to pursue this further and learn more from Garrett. This has been a transformation journey which has given a boost to my confidence and Garrett is an awesome coach and mentor who has elevated each one of us to a new level.
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Pranav Kumar

I had an extraordinary experience in Garrett Gray’s IMPROV class. I took his 7-week course because I had to do more public speaking in my work. The training and coaching I received from Garrett went far beyond my expectations. It DID help me in my work, but in addition, the IMPROV experience had a huge impact on how I observe the intricacies of life now. I became more aware of body language, listening to others, timing, and above all… HUMOR! We-students always left our IMPROV class smiling, laughing, and feeling happy. Hey, this could be the solution to World Peace! I highly recommend taking any class that Garrett Gray teaches. It is rare to have a great teacher…Garrett Gray is one!

Michelle Alfano

At first I was afraid, I was petrified but with Garrett holding the reins he made me believe I would survive. I hadn’t really thought of myself as a funny person, just funny looking and taking Garrett’s adult improv fundamentals class helped me realize I am both! To anyone looking to dip their toes in improv, have some great laughs or even see how you can grow in ways you didn’t think you had in you, I implore you to take Garrett’s class and see for yourself that all three of those possibilities can happen in a mere seven weeks! With how much fun he makes the entire experience, you will undoubtedly be clamoring for more or your next pizza is free!


Brenden Cummings

Garrett’s online improv fundamentals course kept my improv skills sharp during the pandemic. No longer performing with my previous improv troupe, I was elated to take Garrett’s class because it helped me keep my reps up and keep my improv skills sharp!

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Erin Hallstrom

Upcoming Courses

Main Stage Improv's Adult Improv Class


7 Two-Hour Sessions

One-Hour Performance

Main Stage Improv's Adult Improv Class - Spring


7 Two-Hour Sessions

One-Hour Performance

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