In 2014, the actor B. J. Novak, best known as Ryan, the weaselly temp from The Office, went on the Late Show With David Letterman and confessed to a small role he’d played 17 years earlier in the history of the American far right. The significance of this role could not have been obvious at the time, either to Novak (who was in high school) or to its victims, the bewildered patrons of Boston’s Museum of Fine Arts. Novak had recruited a Romanian classmate with a deep voice, and together they’d recorded an audio tour for the exhibition “Tales From the Land of Dragons: 1,000 Years of Chinese Painting.” With the help of friends, they then slipped cassettes containing their tour into the museum’s official audio guides. Explore the September 2023 Issue Check out more from this issue and find your next story to read. View More Art lovers must have wondered about the thick Eastern European accent that greeted them, over the twang of a Chinese string instrument. The Romanian soon became opinionated (“Personally,” …