Piebenga Plumbing – Mark and Scott Piebenga, sons of Grand Rapids MI, have been performing improvisation and comedy for the bulk of the last two decades. Scott’s credits include Crawlspace Eviction (Kalamazoo), We Can Make You Laugh (national tour) and he currently performs at iO Chicago and the Playground. Mark’s credits include Monkapult (Kalamazoo), the Playground, Annoyance, iO and The Second City. They have shamelessly re-appropriated the name of their grandfather, uncle, and father’s actual plumbing outfit without concern for the shocking disparity in work ethic and usefulness.


MARS – Returning to Laughfest is MARS, a two person improv troupe featuring Second City alumni Margaret Edwartowski and Mark Sobolewski.  As playwrights, improvisers, actors, and the closest of friends, Margaret and Mark have been long time staples of both the Detroit theatre and improv communities.  Their character driven longform improv show is a non-stop bullet train to funny town.  Get on board.




Hot Lava – Hot Lava is a Chicago based improv group that has performed at theaters around Chicago including The Annoyance Theater, Under the Gun and The McKaw Theater. They were also at The Green Bay Improv Festival in 2016. They tackle socio-political topics by using their diverse backgrounds and experiences to achieve smart comedic points of view. Hot Lava is the creation of Antoine McKay, Executive and Artistic Director of McKay Arts in Chicago.