From Wikipedia the free encyclopedia Michael Buchman Silver born July 8 1967 is an American actor He is perhaps best known for his recurring role as Assistant District Attorney Leo Cohen in the television series NYPD Blue As of summer 2019 Silver has recurring roles on both NBCs The InBetween and CBS Instinct Silver was born in New York City the brother of writer Amanda Silver and the grandson of Oscarwinning screenwriter Sidney Buchman Silver is a graduate of Brown University