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 Sharon Lawrence ADA Sylvia Costas Actor Gordon Clapp Det. Greg Medavoy Actor Kim Delaney Diane Russell Actor Beau Starr Det. George Harper Guest Star Carmine Caridi Det. Vince Gotelli Guest Star Lourdes Benedicto Gina Colon Guest Star Debra Christofferson Geri Turner Guest Star Willie Garson Henry Coffield Guest Star Steve Antin Det. Nick Savino Guest Star Michael Silver A.D.A. Leo Cohen Guest Star Erik Kilpatrick Darryl Boland Guest Star Sami Chester Alvin Moore Guest Star David Margulies Theodore Wisotski Guest Star Joseph Ragno Gary Norcross Guest Star Gary Anthony Sturgis Larry Blueford Guest Star Tom Wagner Mr. Stoltz Guest Star Michael Potts Mel Guest Star Robert Covarrubias Security Guard Guest Star Angelia Bridges Bartender Guest Star Mark Tinker Executive Producer, Director Bill Clark Writer