Improv & Sketch Classes

Thinking about dipping your toes into the improv or sketch comedy world to pick up some new skills, confidence and friends? Looking for a long-form improv community to flex your (dark) funny bone?

Whether you're a novice or IMPROVeteran, we have a class for you!


Improvise with us!


WeekEND Classes:


WeekNIGHT Classes:


Learn to write sketch!


WeekEND Classes:


WeekNIGHT Classes:


All classes held at Grafenberg Theater
1223 21st St, Denver, CO 80205

We're located around the side of El Charrito next to Thread!

Teachers & Coaches

Grafenberg Productions has some of the best improv and sketch comedy teachers in Denver. They've studied locally and nationally and are now focused on growing the long-form improv community in Colorado, playing off the Chicago iO, Annoyance, and UCB LA Theater styles.


Justin Franzen

Co-owner. Executive Director. Teacher. Lover.


Sheevani Desai

Coach. Teacher. Urban Arm Rasslin Champ.

  Chris Teregis   Teacher. Preacher. Cat Tamer.

Chris Teregis

Teacher. Preacher. Cat Tamer.


Rachel Walker

Teacher. Writer. Pie-eating champion.

Katies Face in Places-15.jpg

Katie Matthews

Managing Director. Teacher. Fighter


Austin Terrell

Teacher. Actor. Beard model.


Ann Flynn-Terrell

Teacher. Actor. Badass.


Max Schwartz

Coach. Teacher. Musical genius.


Daniel Horsey

Coach. Teacher. Artist.


Emily Rado

Teacher. Dog trainer. No brainer.

  Joe Zordan   Teacher. Beat Boxer. Beet Boxer.

Joe Zordan

Teacher. Beat Boxer. Beet Boxer.


Robert Abbott

Teacher. Jokester. Finance broke-ster.