Zack Mast is a Chicago-based writer and actor.
He has performed long-form improv on house teams at iO, CIC, and The Playground and appeared in plays and sketch shows throughout the city. In 2018 his solo show debuted at The Annoyance Theater and appeared in the New York International Fringe Festival.
In 2024 he co-wrote, produced, and moonlighted as Roger Ebert in SISKEL/EBERT at the Bughouse Theater. He reprised his role as Roger in Siskel & Ebert at 50, a live tribute performance produced by Pocket Guide to Hell.
Before training at iO and The Annoyance, he minored in Theater Performance at Cornell University, where he also wrote and performed sketch comedy with The Skits.
As a writer, Zack has contributed to McSweeney's Internet Tendency and The Onion. You can follow more of his personal writing at his newsletter, Masthead.