Steven Bochco Creator, Executive Producer David Milch Creator 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 Jacqueline Obradors Det. Rita Ortiz Actor Currie Graham Lt. Thomas Bale Actor Bonnie Somerville Det. Laura Murphy Actor Lisa Lackey A.D.A. Lori Munson Guest Star John de Lancie Scott Garvin Guest Star Joshua Leonard Todd Garvin Guest Star Christopher Curry Barry Henning Guest Star Holly Fulger Lainie Rutter Guest Star Lisa Banes Defense Attorney Guest Star Richard Lawson Agent Wycoff Guest Star Scott Atkinson Steve McClintock Guest Star Ross Partridge Parks Benton Guest Star Timilee Romolini Samantha Lewitis Guest Star Larry Goldman Steve Kaufman Guest Star Lisa Rotondi Mandy Guest Star Michael Leydon Campbell Agent Kevin Silas Guest Star Amy Lyndon Tanya Kellerman Guest Star Gibby Brand Judge Carazzo Guest Star Ray LaTulipe Josh Astrachan Guest Star Billy Concha Officer Miller Guest Star Mark Tinker Executive Producer, Director Bill Clark Executive Producer, Writer Nicholas Wootton Executive Producer Matt Olmstead Executive Producer Keith Eisner Writer