Born in Dayton, Ohio, Stephen was raised in the Midwest by Sally Boyd Polk, a nurturing influence that shaped his early years. Later, he was also raised in New York City and Wyoming by his father, Louis F. Polk, a notable figure in the entertainment industry, having served as both a president and chairman of MGM. This diverse upbringing instilled in Stephen a unique perspective and appreciation for the world around him.
Stephen's educational background is equally impressive, with attendance at Westminster, Kenyon College, NYU Film School, and The Neighborhood Playhouse. He also had the privilege of studying acting under the guidance of renowned instructors such as Sanford Meisner, Tony Greco, Stella Adler, Greg Zittel, Harry Mastrogeorge, Margie Haber, and Lesly Kahn. These esteemed mentors played a significant role in honing Stephen's craft and preparing him for a successful career in the entertainment industry.
Throughout his early career, Stephen worked at the esteemed Guthrie and Children's Theater Company in Minneapolis, earning an Ace Award and Tony Award for his outstanding performances. He also had the opportunity to star in regional theater productions of Shakespearean plays and Eugene O'Neill's works, winning the prestigious Walker Art Center Performance Art Award.
Stephen's feature film debut came in the iconic 1991 film Thelma & Louise, followed by several small roles in studio films. However, it was his work in independent films that truly allowed him to shine, with a steady stream of credits to his name.
Making his network television debut with TV movies Homeland Security and Holiday Baggage in 2010, Stephen has continued to expand his repertoire, taking on a wide range of roles and projects that showcase his impressive range and versatility as an actor.