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.


Max Schwartz

Coach. Teacher. Musical genius.


Jon Jon Lannen

Teacher. Gay Bear. Man Bun.

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Katie Matthews

Managing Director. Teacher. Fighter


Austin Terrell

Teacher. Actor. Beard model.


Ann Flynn-Terrell

Teacher. Actor. Badass.


Daniel Horsey

Coach. Teacher. Artist.


Emily Rado

Teacher. Dog trainer. No brainer.


Robert Abbott

Teacher. Jokester. Finance broke-ster.