BIORAPHIES
Inbal Lori
Inbal Lori is a graduate of Jerusalem art high school (1994) and Nisan Nativ acting studio (2000). Since then She writes and acts for television and theater and has won prizes and scholarships for her acting and writing.
Inbal started improvising in Tel Aviv in 2001. In 2015 Inbal moved to Berlin and since then she has been teaching and performing all over the world in places like: the U.S.A., Canada, Australia, Colombia, Japan, Nigeria, and Europe.
As of 2025, she is the artistic director of the “Berlin Impro Festival”.
In a business context, Inbal is working and coaching companies like: Spotify, Disney, EY, Doberman, McKinsey, Rolls Royce, and more.
LEE WHITE
International Improvisation Legend Lee White (The LoriLees, 15 Minutes of Fame, The Marbelles, Clever, CRUMBS, D&D improv show) has traveled the world teaching, performing and learning for over 30 years.
Working with the best of the best of Improv from all over the world Lees influence can be felt far and wide. After touring internationally with the legendary CRUMBS for 15+ years he has settled in Berlin and has made a huge impact on the cities improv scene.
His charm, quick wit, and commitment to honest characters has set him apart from the rest. His ability to make you laugh and cry (sometimes at the same time), makes him one of improvs most treasured performers, and well experienced teachers.
Jochem Meijer
Jochem Meijer is an improviser from Amsterdam. He started improv in 1999, so he can and will say he has got over 2 centuries worth of experience.
He has made his work of teaching various improv troupes, schools and companies within the Netherlands and Europe. He is part of various specialized improv groups.
In his free time he is trying to insert his improv skills into the online gaming world, ask him about it and he will explain in depth what that means. (so be aware)
He loves making people click with each other and focuses on getting the group to a higher level. In his workshops he focuses on learning trough doing. So don't expect to be sitting down in long discussions but to get moving and playing when you take a workshop with him.
Aree Witoelar is a Norwegian improv teacher, director and producer from Indonesia. He is the artistic director of Oslo Impro Festival and founder of Impro Neuf International, Norway’s biggest improv community. Aree believes improv is easy and fun when you laugh with your partner through passion and curiosity. His improv style has been mentioned as smart, versatile and mischievous but authentic to his cultural roots.
Aree has been teaching, performing and directing for 17 years. He has taught in Europe at Impro Amsterdam, Tallinn Improv Festival, Improfestival Wurzburg, Oslo Impro Festival, Improfestival Karlsruhe, Robin Hood Nottingham; and in Asia at Singapore Improv Company, Hanoi Improv Hub, and Thailand Groove Oasis.
Aree has performed with Stranger Things Have Happened, The Improv Speakeasy, MSG, Herring & Chopsticks, and directed Cloud Atlas and Kaleidoscopes. Aree loves both silly and cerebral fun with influences from Susan Messing, Jay Sukow, Will Hines, Jason Shotts, Stacey Smith, Amanda Blake Davis, Miles Stroth, Andel Sudik, Chris Mead and Katy Schutte. His mission is to make improv a global artform for anyone from any culture. He is the writer of the improv blog On Cloud Nine.
Aree Witoelar
GonCalo SItima
Actor, trainer, and speaker specializing in Theatrical Improvisation, based in Lisbon, Portugal. He is the founder and artistic director of Cardume - Colectivo de Impro, regularly performing in improv theatre shows and festivals both in Portugal and internationally. In 2024, he proudly represented Portugal at the European Improvisation Championship (improEM 2024) in Munich, Germany. Since 2015, he has been a regular collaborator with the Portuguese improv group Os Improváveis.
Over the years, he has created and developed more than 10 original improv shows and formats, mainly focusing on long-form improvisation. His work explores narrative depth, theatricality, and innovative structures, bringing fresh and engaging experiences to the stage.
Passionate about sharing his knowledge, he teaches Theatre Improvisation courses and workshops at various schools and theatre companies. He trained at iO Theatre in Chicago (USA) and has learned from some of the world’s leading improv masters, including Patti Stiles, Gustavo Miranda, Susan Messing, Omar Galvan, John Mowat, and many others.
As a professional improviser, he not only performs on stage but also brings the power of improv to the corporate world. Through team buildings, training sessions, and workshops, he helps companies and professionals develop key skills such as communication, teamwork, adaptability, and creativity, using improvisation as a dynamic tool for growth and self-development.
MaLgorzata (Gosia) ROZalska
Gosia is a Polish improviser from Gdynia. She has been doing improv since 2004, teaching improv at Gdańsk University since 2007, travelled 20 countries perfoming, directing and teaching.
She graduated, among others, film directing and cultural studies, and she mixes all that with improv. She’s touring Poland with stand-up comedy.
She’s a nerd, always curious, searching for freedom and adventure.
Serzh Velychanskyi
Veteran of improv and war.
2009 – created first Improv club in Ukraine
2012 – Official Host of EURO 2012
2017 – EuroClub host for EUROVISION 2017
2018 – Official Host for Women’s Champions League Final 2021 – founder of online course
2022 – 2024 Armed Forces of Ukraine, Lieutenant.
2024 – Improv 4.5.0 – recreational improv therapy for veterans
Zlatin Tsvetkov
Zlatin Tsvetkov is the founder of ShiZi Improv Theater, the premiere longform improv theater in Sofia, Bulgaria. A pioneer of the Bulgarian improv scene, he co-founded the country’s first improv company and took part in Sofia’s very first improv show back in 2009.
Zlatin graduated the National Academy for Theatre and Film Arts in Sofia in 2005. His career spans over two decades in theater and television, including a three-year run as co-host of a morning show on Bulgarian National Television.
Between 2015 and 2018, Zlatin deepened his improvisational craft in Chicago, completing the 5-week Intensive and 2-week Advanced Intensive at the renowned iO Theater. He also trained with The Annoyance Theater (Chicago) and The Showstoppers (London).
In 2010, Zlatin led Bulgaria’s first-ever improv class and soon after founded the ShiZi Training Center. There, he developed a comprehensive, year-long curriculum spanning 7 levels and advanced groups. The training center now hosts around 160 students, with Zlatin actively teaching five days a week.
Zlatin’s passion for improv lies in its elusive, ephemeral nature — where the process itself is the ultimate goal. He chases the synergy between freedom of expression, deep partner support, and confident stage presence. Equally drawn to the ethereal, interwoven structure of The Harold, the raw truth of theatrical improv, and the over-the-top fun of improv games, Zlatin embraces every facet of the form.