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 Bill Brochtrup John Irvin Actor Henry Simmons Det. Baldwin Jones Actor Garcelle Beauvais-Nilon A.D.A. Valerie Heywood Actor Charlotte Ross Det. Connie McDowell Actor Esai Morales Lt. Tony Rodriguez Actor Joe Spano Det. John Clark Sr. Guest Star Lenny Venito Julian Pisano Guest Star Domenick Lombardozzi Max Legazi Guest Star Austin Majors Theo Sipowicz Guest Star Jack Conley Lt. Blount Guest Star Robert LaSardo Kiki Guest Star Steve Eastin Deputy Commissioner Mueller Guest Star Jacqueline Obradors Det. Rita Ortiz Guest Star Vanessa Marcil Det. Carmen Olivera Guest Star Julia Vera Anna Rodriguez Guest Star Sandra Teres Lucy Rodriguez Guest Star Michelle Rubin Coco Guest Star Mike Sabatino Officer Martelli Guest Star Anthony Mangano Uniform #5 Guest Star Don Fischer Commissioner's Aide Guest Star Trent Dolan Bartender Guest Star Keith Pillow Surgeon Guest Star Michael Echols Uniform #2 Guest Star Ralph Garman Uniform #3 Guest Star Jonny Spanish Gerald Vennit Guest Star Kathleen McNenny Mackie West Guest Star Karen Michelle Wright Jennifer Lerner Guest Star Mark Tinker Executive Producer Bill Clark Executive Producer Nicholas Wootton Writer Mark Piznarski Director