From Wikipedia, the free encyclopedia. David Harvard Lawrence XVII is an American television and film actor, voice talent, network radio host, Internet entrepreneur, podcaster, demo producer, teacher and author, best known for his role as The Puppetmaster on NBC's sci-fi series Heroes.  He was also the host of the daily The David Lawrence Show and weekend Online Tonight, both nationally syndicated radio talk shows that revolved around pop culture and the high-tech lifestyle. The "XVII" in his ...