Gizem Erbas, a.k.a. Giz, started her acting career when she was 6, just to wear the princess costume. After years of doing scripted theater, she discovered the magical unscripted universe of improv in 2013. Since then, she lives everyday like she is on stage, ready to “YES, AND” every suggestion. You’ll find her illuminating the stage at any ImproNation shows, while spreading the joy of improv through courses and workshops. Her mission? To ensure that every soul in this universe experiences the sheer delight of hearty laughter.


David Kühling is a student, teacher, director, creator, and board member at ImproNation. He’s been there from the start—taking a class with Wang, joining a show a month later, and teaching six months after that.
His artistic journey began in childhood with painting, sculpting, and guitar. His true love for the stage ignited during a rehearsal for La Zapatera Prodigiosa, when his teacher told him to follow an imaginary butterfly across the stage.
He lives by the mottos “curiosity is the last thing that dies” and “curiosity killed the cat,”.
Caution: Do not give David an imaginary gun.
Wang Jia is the founder of ImproNation and has been improvising since way back— yes, even before Zoom shows were a thing! He loves that magical moment when the team clicks and anything feels possible, including discovering new facial expressions he didn’t know he had.
Wang brings all kinds of stage energy, from spontaneous characters to stand-up punchlines, and he has even showed his skills on a TEDx stage.


Thom Roelofs’ theatre experience dates back to his first time playing in the school musical at the age of 12, continuing to the stage classes playing all the female roles in his high school to finally discovering and working with Impronation in 2019. After joining one special show on his birthday, he was hooked, and since then, Thom has performed, taught and worked with various Dutch and English groups throughout the Netherlands. Switching between crazy game-like formats to emotional and personal stories on the stage. All to help spark some creativity and joy and discover the delightful and playful inner child in all of us.
For Urko Masse, improv wasn’t just a hobby that started after pandemic restrictions lifted—it was a revelation. His on-stage energy is no surprise; it’s fueled by his background teaching and performing Salsa, including leading his own dance school, SalSaigon, in Vietnam.
Urko brings that same vibrant, physical storytelling to every improv scene, along with a wealth of experience in making learning fun for everyone.


Sara Hedayati stumbled into improv like one might find a hidden garden—by following curiosity. She joined ImproNation in 2022, drawn in by The Hague’s vibrant improv scene and never looked back.
As a devoted player, teacher, and host, Sara embraces the chaos, connection, and imagination of improv. She loves sharp wit, deep emotional presence, and infectious laughs. Her mission? To turn emptiness into story and remind people how alive they are. And to make sure no one ever forgets: even a spoon can have a heartbreak.
Since 2018, Tejas Khedekar has been active in the improv scene of the Netherlands. A senior cast member at ImproNation, he recently began teaching the fundamentals of improvisation.
Influenced by international workshops, his teaching is rooted in the belief that everyone learns differently. He adapts to each participant’s style, creating a supportive, fun space—with lessons that reach beyond the stage.
Outside improv, Tejas works full-time as a cost estimator and plays in the Rotterdam-based metalcore band Fosvor.


Loving a life on stage while suffering from social anxiety, Verena Ohms really is a curious creature. Half the time she’s confused about what’s going on. At other times she identifies as a chipmunk, not least because she loves to stuff her cheeks with delicious food from around the world.
Eating is her second biggest hobby, right after improv. She also believes the world would be a brighter place if people stopped taking themselves so seriously. Therefore, she always tries to infuse a little humor into everything she does.
Emma Sajben was known in kindergarten for “reading” from books, making up stories left and right. Play and theatre have stolen her heart from a young age, which led her to poetry recitals, school theatre productions, and amateur musical shows through most of her life.
Around 10 years ago, struggling with stress and burnout, improv has reignited that spark she forgot she was missing.
It brings her joy to connect with her own and others’ inner children, to spread the feeling of freedom through play, and to explore this wild, magical human experience through the art of improv.


Once Susanne Marr accidentally started doing improv theatre in 2016, she was unable to quit – finally she had found a place where her vivacious emotions and lively facial expressions got the stage that she didn’t know they were looking for.
Getting on stage with her fellow improvisers and watching them shine is what makes her feel alive – and spreading the joy of improv one of her nobler life goals!
Charlotte Sattler-Brookes used to force her 6-year-old friends to be in the plays she made up and inflicted on her family. Never getting lead roles in her youth theatre group she abandoned the stage, until she discovered improv 15 years ago, above an American bookshop in The Hague. She has trained in The Hague, Amsterdam and London. After a long break to improvise mothering, Charlotte joined ImproNation before it was really a thing and is wowed by how it is now. On stage she loves to do the unexpected. So watch out!


For Mali Karakaya, improv is where curiosity runs wild and chaos makes sense. He’s drawn to the in-between moments—the pause before a bold choice, the shift when things take an absurd turn.
He thrives when the group mind kicks in—when everyone’s tuned in, creating something none could alone. Intrigued by characters that reveal more than they mean to, he’s drawn to the raw, the ridiculous, and the quietly existential.
Off stage, that same curiosity feeds his love for unexpected questions, shifting perspective, and the strange logic behind how we live and relate.
Our History
ImproNation is an international improv theatre group that started as an idea by Wang Jia in 2020. Since then, with the help of various committed members, it has grown to be an international community for exploring and teaching improv-based theatre.
Through biweekly shows, multiple courses and weekly workshops, anyone is welcome to try improv for the first time or continue their improv journey. The community is in The Hague with close connections to neighbouring communities in Delft, Amsterdam and Rotterdam.
We, as Impronation, believe that improvisational theatre is an excellent way for us to be playful, laugh, accept and build upon each other's strengths. Learn more about your strengths, meet new people and have fun doing so. So should I take that first step? Yes, and we will be happy to welcome you and help you discover the improviser in you.