From Wikipedia, the free encyclopedia. Joseph Peter Mascolo (March 13, 1929 – December 8, 2016) was an American musician and dramatic actor. During his long career, he acted in numerous motion pictures and television series. He played villain Stefano DiMera on NBC's soap opera Days of Our Lives from 1982 to 2016. He also starred as Massimo Marone on the CBS' soap opera The Bold and the Beautiful from 2001 to 2006. Description above from the Wikipedia article Joseph Mascolo, licensed under CC-BY-SA, full list of contributors on Wikipedia