David Milch Creator, Executive Producer, Writer 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 Kim Delaney Diane Russell Actor Andrea Thompson Det. Jill Kirkendall Actor Herb Mitchell Wally Sayers Guest Star Gabrielle Fitzpatrick Naomi Reynolds Guest Star Silas Weir Mitchell Tony Guest Star James Murtaugh Sheehy Guest Star Bill Cwikowski Bruce Hogue Guest Star Viveka Davis Margo Guest Star Brian Tarantina Darin Gammel Guest Star Dominic Oliver Stevie Priddy Guest Star Kelly DeMartino Carla Guest Star Bill Clark Writer John Chambers Writer Jake Paltrow Director Mark Tinker Executive Producer