Dennis Franz (born October 28, 1944) is an American actor best known for his role as Andy Sipowicz, a hard boiled police detective in the television series NYPD Blue. He previously appeared as Lt. Norman Buntz on Hill Street Blues, and earlier played Detective Benedetto, a corrupt cop also on HSB.
In early 1950s Los Angeles, three policemen - one strait-laced, one brutal, and one sleazy, investigate multiple homicides. While unearthing the evidence and the suspects, the trail leads to corruption in their own department.
