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 John F. O'Donohue Sgt. Eddie Gibson Guest Star Lana Parrilla Officer Janet Grafton Guest Star Kirk Acevedo Scott Grafton Guest Star Anton Yelchin Evan Grabber Guest Star Heidi Dippold Kelly Palmer Guest Star Terri Hanauer Marilyn Grabber Guest Star Brian Dunkleman Lonnie Cutler Guest Star Lauri Johnson Lois Rubicoff Guest Star Max Baker Ian Braithwaite Guest Star Stuart Fratkin Gavin McCulloch Guest Star James Grimaldi Pete Warren Guest Star Gerry Del Sol Uniform 1 Guest Star Terry Logan Uniform 2 Guest Star Jeff Padilla Uniform 3 Guest Star Mark Tinker Executive Producer Bill Clark Executive Producer Matt Olmstead Executive Producer Nicholas Wootton Executive Producer Keith Eisner Writer Dennis Dugan Director