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 Dan Lauria George Garabedian Guest Star Sasha Jenson Johnny Arcotti Guest Star Tony Burton Floyd Gates Guest Star Jeris Poindexter Louis Guest Star Bill Henderson Verdis Guest Star Ernie Lee Banks Delmar Guest Star Carmine Caridi Det. Vince Gotelli Guest Star Courtney Delancey Carla Leon Guest Star Pasha D. Lychnikoff Dimitri Guest Star Poppy Montgomery Lisa Guest Star Justina Machado Elsa Guest Star Rick Worthy Det. Elkins Guest Star Mike Sabatino Officer Martelli Guest Star Robert Mont Mr. Dunbar Guest Star Steve Lang Detective Grimes Guest Star Christopher Spiro Uniform Officer Guest Star Tere Wierson Policewoman Guest Star Tommy Tiny Lister Bob Guest Star Mark Tinker Executive Producer Leonard Gardner Writer Perry Lang Director