Siskel & Ebert at 50. Roger Ebert, November 2025. Produced by Pocket Guide to Hell. Director: Meredith Milliron
SISKEL/EBERT. Roger Ebert, July 2024. Co-produced with Stephen Winchell. Director: Katlin Schneider
The Perfect Play. Ensemble, April 2019. Director: Stephen Winchell
The Funny Papers. Ensemble, September 2018. Director: Erica Reid
Strike 3*. Ensemble, August 2016. Director: Erica Reid
American Carnage: A Solo Staged Reading of Select Screenplays by Stephen K. Bannon. Steve Bannon (solo show), February 2018. Self-produced. Director: Bryan Duff (Appeared in the 2018 NYC International Fringe Festival)
The Government Inspector. German Doctor, Spring 2010. Director: Richard Hamburger
The History Boys. Crowther, Spring 2009. Director: Melanie Dreyer
Alice in Wonderland. Various Roles, Spring 2008. Director: Norm Johnson
iO - Training completed in 2012. House Teams: Sonis, Gideon
The Annoyance - Training completed in 2013.
CIC - House Team: High Horse
"Winchell was spot-on and very funny as Siskel, while Mast captured Ebert’s look, mannerisms and cadence so impeccably, it was downright eerie." - Matt Fagerholm, RogerEbert.com, 2025
"It’s a show better described as political-adjacent, rather than politically focused, and helpfully avoids judging the politics at-hand in favor of instead using them as backdrop for Mast’s wry comedic voice and clever storytelling." - Chris Behmke, My Entertainment World, 2018
"Naive line readings, semaphore-style acting, conscientious efforts to make every joke last too long, plus a director in a black beret (Zack Mast) who wanders in from time to time to explain his method and lose his train of thought—it’s all kind of goofy sweet." - Tony Adler, Chicago Reader, 2016
"From a jittery, bumbling schoolmaster (Alejandro Ruiz) to an underhanded hospital director (Ian Harkins) and his incomprehensible chief of surgery (a relatively muted, but hilarious Zack Mast), each character is as bonkers as the next." - Kathy Laluk, Ithaca.com, 2010