David Milch Creator, Executive Producer Steven Bochco Creator, Executive Producer Jimmy Smits Det. Bobby Simone Actor Dennis Franz Det. Sgt. Andy Sipowicz Actor James McDaniel Lt. Arthur Fancy Actor Nicholas Turturro Detective James Martinez Actor Gordon Clapp Det. Greg Medavoy Actor Sharon Lawrence ADA Sylvia Costas Actor Gail O'Grady Donna Abandando Actor Justine Miceli Det. Adrienne Lesniak Actor Kim Delaney Diane Russell Actor Giancarlo Esposito Ferdinand Hollie Guest Star Daniel von Bargen Sgt. Ray Kahlins Guest Star Claude Brooks DEA Agent Sanford Guest Star Conor O'Farrell Det. Stuart Morrisey Guest Star Lillian Hurst Mrs. Marquez Guest Star Bill Marcus Rudolph Haysbert Guest Star Joe Minjares Father Ramos Guest Star Michael Anthony Rawlins Larry Guest Star Danny Trejo Gabriel Mota Guest Star Mark Tinker Executive Producer David Simon Writer Davis Guggenheim Director