Steve improvises at UCB Chelsea with the Harold team Women & Men and co-hosts and performs weekly with Improv Nerds at UCB East Village. He was previously a member of Harold teams Creature, Rocks, Sherlock & Cookies, and Greg. He wrote for the sketch video team SCRAPS. He has appeared in commercials, PSAs, promos, and comedy videos for Disney Vacation Club, USA Today, NYC Anti-Piracy, Comedy Central, Above Average, and UCB Comedy. Steve wrote a pilot that was chosen as a finalist for the 2012 New York Television Festival (NYTVF) FOX Comedy Script Contest. He was also a finalist for the 2010 Disney ABC TV Writing Program. The 'h' in his last name is pronounced like those in Thailand or Thomas. Theiss rhymes with rice, a popular grain throughout the world.