David Milch Creator, Executive Producer, Writer Steven Bochco Creator, Executive Producer Dennis Franz Det. Sgt. Andy Sipowicz Actor Ricky Schroder Det. Danny Sorenson Actor James McDaniel Lt. Arthur Fancy Actor Kim Delaney Diane Russell Actor Gordon Clapp Det. Greg Medavoy Actor Nicholas Turturro Detective James Martinez Actor Andrea Thompson Det. Jill Kirkendall Actor Bill Brochtrup John Irvin Actor Henry Simmons Det. Baldwin Jones Actor Sheeri Rappaport Officer Mary Franco Guest Star Eric Sait Calvin Rowley Guest Star Jack Wallace Det. Hoffman Guest Star Julianna McCarthy Mrs. Kenyon Guest Star Ken Magee Herb Garnett Guest Star Rich Hutchman Billy Garnett Guest Star Mike Grief Workman Guest Star Mark Tinker Executive Producer, Director Bill Clark Executive Producer, Writer Robert Doherty Producer W.K. Scott Meyer Writer Karen Gaviola Director