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 Michael DeLuise Andy Sipowicz Jr. Guest Star Titus Welliver Dr. Mondzac Guest Star Conor O'Farrell Det. Stuart Morrisey Guest Star Bill Brochtrup John Irvin Guest Star Michael Silver A.D.A. Leo Cohen Guest Star Vincent Guastaferro Sgt. Vincent Agostini Guest Star Andy Romano Inspector Aiello Guest Star James Luca McBride Officer James Shannon Guest Star Mike Sabatino Officer Martelli Guest Star Carmine Caridi Det. Vince Gotelli Guest Star Billy Concha Officer Miller Guest Star Mark Tinker Executive Producer, Director David Mills Writer Theresa Rebeck Writer Leonard Gardner Writer Nicholas Wootton Writer Gardner Stern Writer Randy Zisk Director Michael Daly Writer David Simon Writer Robert Glaudini Writer Elodie Keene Director Donna Deitch Director Perry Lang Director Michael M. Robin Director Davis Guggenheim Director