JActingJeff Duff4 creditsNo biography recorded yet.Acting (3)PolymorphiaPolymorphia2016 · AlbertSons of Steel - directors cutSons of Steel - directors cut2010 · SectaSons of Steel1989 · SectaCrew (1)Ray Kurzweil and the SingularityRay Kurzweil and the Singularity2012 · Original Music Composer
