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 Jacqueline Obradors Det. Rita Ortiz Actor Currie Graham Lt. Thomas Bale Actor Bonnie Somerville Det. Laura Murphy Actor Scott William Winters Detective Stan Hatcher Guest Star Samaire Armstrong Christine Guest Star Scott Allan Campbell IAB Sgt. Jerry Martens Guest Star Ed O'Ross Pat Carr Guest Star Brian Goodman Mickey Cole Guest Star Tony Colitti Larry Mytelka Guest Star Richard Fancy Howard Seigal Guest Star Joe Maruzzo Burt Suervo Guest Star Samantha Smith Corrine O'Malley Guest Star Michael Potter Chief Don Hatcher Guest Star Dean Hill Al Guest Star Fitz Houston Chuck Guest Star Mari Weiss Norma Guest Star Jonah Hill Clerk Guest Star Cheryl Francis Harrington Receptionist Guest Star Jamie Foss Female Friend Guest Star Mark Tinker Executive Producer Bill Clark Executive Producer, Writer Nicholas Wootton Executive Producer Matt Olmstead Executive Producer William M. Finkelstein Executive Producer Greg Plageman Writer John Hyams Director