Mr. Bergman has been performing with the troupe since 1991, most frequently playing the role of Pantalone, but dipping into pedanticism as Graziano, lunacy as Arlecchino, or exasperation as Pedrolino. Other theater experience includes over ten years as Sound Committee Chair with the New England Folk Festival, and providing sound reinforcement for Swing Dancers, Folk Dancers, and Folk concerts around greater New England.