​Mark teaches acting, improv, and screenwriting classes at the award-winning theater company The Barrow Group, where he has taught for almost 10 years. Mark has also taught at the American Comedy Institute, The Annoyance Theatre, Magnet Theater, and The Peoples Improv Theater in New York. He has conducted workshops and professional development seminars for Columbia University, The Ford Foundation, The Fulbright Association, Kaye Scholer LLP, Marymount Manhattan College, The New York Film Academy, Pearson Education, Travelocity, Twitter, WebMD, and many others. He studied acting at The Barrow Group and The Atlantic Theater Company, improv and comedy writing at The Annoyance Theatre and The Upright Citizens Brigade, and filmmaking at the Graduate School of Cinema at Brooklyn College.