Born on January 7, 1960 in Newark, New Jersey, David Marciano is a product of troubled youth. His youth was marred with violence and crime. Growing up, he was part of a group called the Nomads, which he hung out with. The Nomads were an eclectic group of teenagers exposed to the reality of growing up in the then troubled city of Newark. Marciano, thus, became a witness of a city in crisis. “I was hanging around on street corners, drinking, gambling, playing cards, going to the racetrack, shooting pool, all those kind of things.”
Marciano’s foray into drinking and gambling ended when he almost died in a car crash. After this near-tragedy, Marciano sobered up and eventually took up Biomedical Engineering at the Northeastern University in Boston, Massachusetts. After failing to pique his interest, he transferred to economics and accounting during his sophomore year. Eventually, he dropped out of school altogether to pursue acting.
Marciano moved to Los Angles in 1985 to pursue acting professionally. He got his first big break two years hence when he landed a guest spot on Wiseguy. After a string of more small roles, he bagged the part of Detective Vecchio in Due South in 1994 for two seasons up until his character was written off due to filming commitments. He is also commonly known as Giorgio Clericuzio in Mario Puzo’s the Last Don. He was also cast on the FX police drama The Shield as Detective Billings. The Shield is an edgy, gripping crime drama that delves into the gritty world of inner-city Los Angeles and the harsh realities that accompany that world. In 1991, Marciano married Katayoun Amini, his co-star on Due South.