David Milch Creator Steven Bochco Creator, Executive Producer Dennis Franz Det. Sgt. Andy Sipowicz Actor Mark-Paul Gosselaar Det. John Clark, Jr. Actor Gordon Clapp Det. Greg Medavoy Actor Charlotte Ross Det. Connie McDowell Actor Henry Simmons Det. Baldwin Jones Actor Bill Brochtrup John Irvin Actor Garcelle Beauvais-Nilon A.D.A. Valerie Heywood Actor Esai Morales Lt. Tony Rodriguez Actor Jacqueline Obradors Det. Rita Ortiz Actor Andre Kinney Michael Woodruff Guest Star Doug Savant Jason Foster Guest Star Deirdre Lovejoy Michelle Foster Guest Star Anthony John Denison Tony Grimaldi Guest Star Louis Lombardi Gio Puglisi Guest Star Mel Rodriguez Norman Reese Guest Star Sterling K. Brown Kelvin George Guest Star Shannon Lucio Courtney Bates Guest Star Elayn Taylor Roberta Blanc Guest Star Aloma Wright Florence George Guest Star Jerry Ferrara Danny Puglisi Guest Star Theo Rossi Pete Amici Guest Star Zena Gaynes Louise Giannini Guest Star Susan Giosa Vicki Grimaldi Guest Star James Luca McBride Officer Shannon Guest Star Wells Rosales Ray Espinoza Guest Star Stacey Goryl Nurse Guest Star Ralph Garman Uniform 1 Guest Star Joseph Carberry Uniform 2 Guest Star Patrick Robert Smith Uniform 3 Guest Star Philip Angelotti Uniform 4 Guest Star Mike Sabatino Uniform 6 Guest Star Mark Tinker Executive Producer, Director Nicholas Wootton Executive Producer Bill Clark Executive Producer Matt Olmstead Executive Producer Greg Plageman Writer