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 Jason Beghe Julian Kerbis Guest Star George Di Cenzo Pete Russell Guest Star Adam Trese Doug Russell Guest Star Jon Polito Paul Biaggi Guest Star Billy Warlock Mike Barnett Guest Star David Warshofsky Bruce Krieger Guest Star Phyllis Somerville Dorothy Russell Guest Star Kathrine Narducci Angela Biaggi Guest Star Katherine Kamhi Connie Williams Guest Star Lou Casal Mike Biaggi Guest Star Steve Ryan Pat Carr Guest Star Cress Williams Silky Guest Star Carmine Caridi Det. Vince Gotelli Guest Star David Harris Officer Donny Simmons Guest Star Vincent Guastaferro Sgt. Vincent Agostini Guest Star Mark Goldstein Dr. Goodman Guest Star Billy Concha Officer Miller Guest Star Tom Caruso Uniform Cop Guest Star Mark Tinker Executive Producer Gardner Stern Writer Michael M. Robin Director