David Milch Creator, Executive Producer, Writer Steven Bochco Creator, Executive Producer Jimmy Smits Det. Bobby Simone Actor Dennis Franz Det. Sgt. Andy Sipowicz Actor James McDaniel Lt. Arthur Fancy Actor Nicholas Turturro Detective James Martinez Actor Gordon Clapp Det. Greg Medavoy Actor Kim Delaney Diane Russell Actor Andrea Thompson Det. Jill Kirkendall Actor Sharon Lawrence ADA Sylvia Costas Guest Star Michael Wiseman Tommy Richardson Guest Star Charlotte Ross Laurie Richardson Guest Star Titus Welliver Dr. Mondzac Guest Star Lola Glaudini Dolores Mayo Guest Star Karina Arroyave Theresa Ocasio Guest Star Aaron Lustig Dr. Gerald Talbot Guest Star Frank Roman Carlos Ocasio Guest Star David Barrera Dr. Victor Carreras Guest Star Chris Iyer Dr. Gupta Guest Star Kari Whitman Nadine Guest Star Del Zamora José Aguilar Guest Star Bill Clark Writer Jill Goldsmith Writer Perry Lang Director Mark Tinker Executive Producer