Karen L. Eichler is an American improviser, author, and educator who co-founded Defiant Monkey Improv in 2009 with Andrew M. Spragge. A ComedySportz veteran since 1997 and graduate of The Second City Toronto, Eichler has co-authored three books on improvisational performance: The 5 Elements of Improv (2017), The One Minute Improviser (2018), and The Big Book of Improv Games (2020). She holds a Master's Degree in Education and has worked as a university professor teaching Public Speaking and College Writing.
Eichler began performing improvisation with ComedySportz in 1997, joining one of North America's largest competitive improv networks. She trained at The Second City Toronto, graduating from the program and absorbing the institution's scene-based, relationship-driven approach to improvisation. Her performance career took her to stages across the United States, including DC's Improv, the Ivar Theater in Hollywood, the Newmark Theater in Portland, and Steppenwolf in Chicago.
In 2009, Eichler and Andrew M. Spragge, also a ComedySportz veteran, formed Defiant Monkey Improv, a two-person improvisational group based in Western New York. Defiant Monkey creates on-the-spot theatre based on audience suggestions and participation, performing shortform improv for adult audiences as well as children's shows at local schools, libraries, and nonprofit organizations. The duo's work as a married performing team has allowed them to develop a particularly attuned two-person improv dynamic built on years of both personal and professional partnership.
Beyond improv, Eichler has performed in scripted theatre, appearing in productions including Annie the Musical and as Madame Thenardier in Les Miserables. She has also worked as a children's show performer and storyteller since 2000, bringing improvisational techniques to younger audiences.
Eichler and Spragge have co-authored three books in their Masters of Improv series. The 5 Elements of Improv: How to Take Your Improv to the Next Level (2017) identifies five core elements of effective improvisation: Story, Environment, Trust, Focus, and Showmanship. The One Minute Improviser: Learn the Secrets of Being a Truly Great Improviser (2018) distills improv principles into accessible, concise lessons. The Big Book of Improv Games: A Compendium of Performance-Based Short-Form Games (2020) provides a comprehensive collection of games organized for practical use by performers and facilitators. Together the three volumes represent a systematic attempt to codify improvisational craft for performers at all levels.
Eichler and Spragge also work as professional development specialists and teaching artists, applying improvisational principles in corporate and educational settings. Their combined expertise as performers, writers, buskers, and musicians makes them versatile practitioners of applied improv alongside their stage work.
Historical Context
Eichler entered the improv world through ComedySportz in 1997, at a time when the competitive improv franchise was well-established across multiple cities. Her subsequent training at The Second City Toronto connected her to the institutional tradition most associated with character work, scene painting, and satirical sketch creation. This dual background in competitive short-form and Second City-style scene work informed the framework she would later articulate in her books.
The founding of Defiant Monkey Improv in 2009 represented a shift toward independent production. Based in the Lockport area of Western New York, Eichler and Spragge built their practice outside major improv markets, demonstrating that professional-caliber improv performance could sustain in smaller communities. Their children's programming extended improv's reach to audiences typically underserved by the form, while their adult shows maintained the performance standards established through their ComedySportz and Second City training. The decision to operate as a two-person company rather than building an ensemble reflected both practical constraints of working in a smaller market and an artistic choice to develop the deep scene partnership that comes from years of consistent collaboration with a single partner.
Eichler's parallel career in scripted theatre, including roles in Annie and Les Miserables, kept her connected to traditional stage craft even as her improv work intensified. Her storytelling work with children since 2000 added a narrative performance dimension that would later inform the Story element of her 5 Elements framework.
Teaching Philosophy
Eichler's pedagogical approach, articulated across three co-authored books, centers on breaking improvisational performance into learnable, practicable elements. The 5 Elements framework (Story, Environment, Trust, Focus, and Showmanship) provides students with specific areas for deliberate improvement rather than treating improv as an undifferentiated talent. Her Master's Degree in Education and university teaching experience in Public Speaking and College Writing inform a structured, outcomes-oriented approach to improv instruction. Through Defiant Monkey's school programs, she has adapted improvisational exercises for children, emphasizing play, storytelling, and collaborative creativity as foundational communication skills.
Legacy
Eichler's contribution to improv lies in her systematic codification of performance principles through the Masters of Improv book series. While many improvisation texts focus on either games or philosophy, Eichler and Spragge's work bridges both, providing a structured framework for skill development alongside a comprehensive games compendium. The 5 Elements model offers practitioners a diagnostic vocabulary for identifying specific weaknesses in their work rather than relying on general feedback. Their work as a two-person troupe in Western New York also demonstrates that meaningful improv practice can thrive outside traditional centers like Chicago, New York, and Los Angeles. By sustaining a performance career, publishing program, and educational outreach from Lockport rather than relocating to a major market, Eichler and Spragge expanded the geographic footprint of professional improvisation and modeled a viable career path for improvisers in smaller communities.
Recommended Reading
Books are ordered from the strongest direct connection outward to broader relevance.

The 5 Elements of Improv
How to Take Your Improv to the Next Level
Andrew M. Spragge; Karen L. Eichler

The Second City Almanac of Improvisation
Anne Libera

The Art of Chicago Improv
Short Cuts to Long-Form Improvisation
Rob Kozlowski

The Comedy Improv Handbook
A Comprehensive Guide to University Improvisational Comedy
Matt Fotis; Siobhan O'Hara

Teaching Improv
The Essential Handbook
Mel Paradis

Pirate Robot Ninja
An Improv Fable
Billy Merritt; Will Hines
References
How to Reference This Page
The Improv Archive. (2026). Karen L. Eichler. Retrieved September 28, 2026, from https://improvarchive.org/people/karen-l-eichler
The Improv Archive. "Karen L. Eichler." The Improv Archive, 2026. https://improvarchive.org/people/karen-l-eichler.
The Improv Archive. "Karen L. Eichler." The Improv Archive, 2026, https://improvarchive.org/people/karen-l-eichler. Accessed September 28, 2026.
The Improv Archive is a systemically maintained repository. The archive itself acts as the corporate author.