Bringing the art of improvisation to the EuroBubble

About Improbubble

ImproBubble was established to bring the wide range of benefits of improvisational theatre to Brussels’ international scene. Enroll in one of our weekly classes, come see our talented improvisers work their magic on stage, or book us for one of our corporate training programmes!

What is improv anyway?

Improvisational Theatre

Improvisational theatre is an art form in which performers get on stage and create stories completely in the moment, without using a script. The characters, plot, dialogue and story are created spontaneously, based on audience suggestions and each other’s inspiration.

Applied Improvisation

In addition to its growing popularity as a performance art, training in the art form’s soft skills has become immensely popular with Fortune 500 companies, universities, start-ups and many other organisations around the world. Teaching, public speaking, communications, team building, leadership, language learning, creativity, innovation and well-being are some of the many areas that can benefit hugely though applied improvisation.

Where do we come in?

ImproBubble was established to offer the wide range of benefits of improvisational theatre and applied improvisation to Brussels’ international scene. Enroll in one of our weekly classes, come see our talented improvisers work their magic on stage, or get your company to book us for one of our corporate training programmes, tailored to your exact needs.

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Introduction to Musical Improvisation (Advanced)

Every Monday from 5-26 November 2018, 19:00-21:30

Over four fun filled sessions, this course will teach you the fundamentals of music for improv, taking you from zero to an improvised musical!

This course is suitable for alumni of ImproBubble’s Level V and improvisers who have at least 1-2 year of improv experience, however no previous musical experience (improv or otherwise) is necessary.


ImproBubble Level IV

Every Tuesday from September 25 until November 20 2018, 19:00-21:00
This is the fourth student level in ImproBubble’s School of Improvisation. Get ready for in depth scenework and editing, leading up to a school showcase performance!

Those eligible for this class, will have completed ImproBubble’s level III. If you have not, you can still join, provided you have the necessary improv experience; email us on and one of our instructors will get back to you and determine whether this course is the right fit for you.


The Hero’s Journey (advanced)

Every Monday from October 1-22 2018, 19:00-21:30
This 4 week course is primarily geared towards the alumni of ImproBubble Level V, but is also open to other advanced improvisers who want to learn the tools that will enable them to be able to perform a fully improvised Hero’s Journey.

You can still join even if you have not followed the ImproBubble curriculum; email us on and one of our instructors will get back to you and determine whether this course is the right fit for you.




In addition to our weekly courses, ImproBubble regularly invites well known improvisors to Brussels in order to share their insights with via tailor made masterclasses.

Here’s what’s coming up:

October 27: Singing in Character with Stacey Smith (details & registration)

November 25: Masterclass with Jacintha Damstrom (details TBC)

December 2: Masterclass with Chris Mead (details TBC)



The act of improvising on stage is typically not done alone, but by a group of performers who are inspired by and support each other to create a meaningful and entertaining story. Improvisers use a series of principles and exercises to hone their craft; they learn to listen with intent; to accept each other’s ideas instead of shooting them down and to set aside ego for the common good. This creates a positivity infused environment where mistakes are forgiven (even celebrated!), ideas are built upon and anything and everything becomes possible.


Skilful speakers are master storytellers. They know how to capture their audience’s imagination both with their content and with their delivery. What makes them great communicators is their ability to influence others through their delivery, whatever the message or the situation. But how do you know when you’re really having an impact? What can you do practically to improve your skills and, for those who don’t like speaking in public, calm your nerves?

Good theatrical improvisation relies on the ability of improvisers to act as storytellers; through their use of narrative and through their choices as characters, through what they say (and also what they don’t say), these players take their audience on a journey with them immersing them fully in their story and their characters’ fate.

Empowering Women

Women are advancing in the workplace more than ever before; however, the higher they get up the career ladder, the fewer there are that make it to the top. While employment conditions and company cultures are supporting the rise of women more than ever before, they still face many challenges. Though some of the solutions require more large-scale societal change, there are some learnt behavioural patterns that we can work on, if we are made aware of them first. This is where improvisation can be used as a tool for female empowerment.

Upcoming shows

Sunday 23 September 2018, 20:00

ImproBubble presents: NO EXIT

For our first improv show of the season, the all-new ImproBubble core cast will kick off the season in a format they will play for the first time together, directed by Pierpaolo Buzza: No Exit.

No Exit, named after the homonymous play by Jean-Paul Sartre, takes place in a single location, in real time, with 4 characters, who are all on stage at all times. 

L’Arriere Scene (1140, Brussels)

Sunday, 28 October 2018, 20:00

ImproBubble: The Musical!

Under the tutelage of guest teachers Summer Banks (Madrid) and Stacey Smith (Boston), the core cast will delight you with an improvised musical worthy of Broadway!

Tickets are 15 euro at the door or 12 euro online.

L’Arriere-Scene ( 1140 Brussels)

Sunday 25 November 2018, 20:00

ImproBubble presents: Student Showcase & Jacintha Damstrom

Jacintha is an extremely talented improvisor/acrobat from Finland who will be joining the ImproBubble ensemble on stage after giving a weekend workshop. Get ready for a fast paced, physical and high energy show!

L’Arriere Scene (1140, Brussels)


The ImproBubble course is a safe space for creative experimentation, a great mood booster on a Monday night, generating enough positive energy to keep you going through the working week. Kelly and Ben are both fantastic teachers – enthusiastic about improv, inspiring for their students and supporting our development.Thanks to the course I have met wonderful people and I feel privileged to be part of this growing Improv community in Brussels. Kasia Jurczak
I started taking improv classes at ImproBubble because I wanted to improve my story-telling skills whilst running a role-playing game for friends. Kelly and Ben have provided me with a versatile and diverse toolbelt of improv techniques that have made my games more lively, dynamic and player driven. I now look forward to next occasion my players throw our game entirely off course!Alex Sassmannshausen
In only a few hours time, Kelly manages to make everyone feel completely at ease, introduce them to the theory and advantages of improv and let them experience the lessons improv teaches you. I am convinced by participating in her workshop that improve can help anyone, especially people in corporate settings. Dealing with criticism, increasing your self-confidence and letting go of your fear of failure are only a few of the many skills you learn here. On top of that, Kelly is a great teacher and a lovely and fun person to be around, so it is entertaining at the same time. I absolutely recommend it and I will be back with my colleagues! Noemi Blumberg
Kelly’s improvisation workshop puts you “out of your comfort zone” in a very “comfortable” way. In just a couple of hours , Kelly was able to give me useful tips on how to react quickly and appropriately in unexpected situations, how to be an active listener and how to engage an audience of strangers. Kelly did this in an extremely entertaining and professional way. Her enthusiasm gave me a real energy boost! I would definitely recommend Kelly’s workshop to anyone willing to learn how to feel at ease in any (professional and non- professional) setting! Stephanie Rosello
I took an improvisation workshop with Kelly, which really inspired me. Kelly taught us that failing is part of a learning process; she showed us how to accept and to deal with failing, with a smile. Through some fun exercises, she showed us how important it is in a team to listen to each other, and to say “yes” to someone else’s ideas. They just might be worth while exploring. I’ll definitely apply some of the key take-aways in my job, and in my personal life. Maia Santens

If you are looking to get out of your comfort zone, but in a way that is safe and tons of fun, try Impro Bubble! Among many other concepts, you will learn to

1. TRUST: a) in your own impulses, ideas, skills… b) in your partner c) in the moment Everything you need to make the scene is right here and now, not in the future, not in the past, not in another place.

2. Be happy if you make a mistake or “fail” (it means that you took a risk)

3. Always accept what you are given (aka suggestions from your improve partner) as if you had come up with them yourself (and from there build on them, rather than judging them as stupid and dismissing them). If this sounds like Life Therapy, it really is, just that you will laugh your belly out in the process. Kelly and Ben are both great instructors, who will side-coach you in a very constructive and empowering way. You will make lots of new friends, too. Absolutely recommended!Claudia Kaiser

Kelly Agathos,

Founder, School Director, Cast member

Kelly was first introduced to improvisational theatre in 2010 and was instantly hooked. Nowadays, she teaches, performs and delivers corporate trainings in  Belgium and abroad.  Kelly founded  ImproBubble to bring the benefits of improvisation, in all its forms, directly to the EU capital’s vibrant international community.

In addition to running ImproBubble, Kelly is one half of narrative improvisation duo, Hic Sunt Leones.

Ben Hartwig

Teacher, Cast member

Ben is an actor, trainer and entrepreneur, who started performing improvisational theater 16 years ago. After his PhD in genetics in 2012, he traveled the world to study various styles of improvisation.

Aside from his work with ImproBubble, Ben is the founder of Neuroblitz®, which combines applied improvisation and science.  Ben is also a member of Germany’s most successful improv troupe, “Springmaus”, and CEO of the startup


+32 478 05 63 83

184 Rue Haute (via the ‘impasse de Varsovie’)

1000 Brussels