​From Wikipedia, the free encyclopedia.   Michael E. Knight (born May 7, 1959) is an American actor. Knight is best known for playing Tad Martin on the soap opera All My Children. His first stint on the show ran from 1982-1986. He returned from 1988–1990 and again from 1992–present. Knight also appeared as Ted Orsini on AMC from 1993-1994. Description above from the Wikipedia article  Michael E. Knight , licensed under CC-BY-SA, full list of contributors on Wikipedia.