On television, Schwartz guest-starred as Jean-Ralphio Saperstein on NBC’s Parks and Recreation and is a lead in the Showtime show House of Lies with Don Cheadle, Kristen Bell and Josh Lawson. In 2010, Schwartz played series regular Bill Hoyt on J. J. Abrams' one-hour spy drama Undercovers for NBC.
Also he has voiced Stuffy the dragon in the Doc McStuffins spin-off TV series The Doc Files, and Ben performs the voice of Donald Duck's nephew Dewey Duck (the blue-wearing middle nephew) on Disney's DuckTales (2017). He was also a vocal consultant for BB-8 in Star Wars: The Force Awakens. He even played Rilo in the Tron: Uprising episode "The Renegade: Part 1".