David Milch Creator 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 Bill Brochtrup John Irvin Actor Henry Simmons Det. Baldwin Jones Actor Garcelle Beauvais-Nilon A.D.A. Valerie Heywood Actor Phil LaMarr Sidney Thompson Guest Star Dwayne Barnes Darius Guest Star Alexander Pascal Shane 'Dio' Morrissey Guest Star Rainbow Borden Howard Guest Star Ned Vaughn Ross Fitzpatrick Guest Star Taryn Manning Tracy Guest Star Moira Walley-Beckett Lisa Derkos Guest Star James Wellington Dominic Guest Star Miguel Perez Hector Rodriguez Guest Star Brad Grunberg Louie Guest Star Charlotte Ross Det. Connie McDowell Actor Mark Tinker Executive Producer, Director Bill Clark Executive Producer, Writer Matt Olmstead Writer