David Milch Creator, Executive Producer 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 Sharon Lawrence ADA Sylvia Costas Actor Kim Delaney Diane Russell Actor John Ventimiglia Michael Zorzi Guest Star Andrea Thompson Det. Jill Kirkendall Guest Star John Bellucci Larry Paget Guest Star Scott Allan Campbell IAB Sgt. Jerry Martens Guest Star Michael Silver A.D.A. Leo Cohen Guest Star Matt Landers Desk Sgt. Baumgartner Guest Star Danny Masterson Will Scheltema Guest Star Yancey Arias Bobby Rock Guest Star Jenny Wright Trish Taylor Guest Star H. Richard Greene Walter Mirren Guest Star Gokul Rajnish Prasad Guest Star Katherine Ellis Michelle Mirren Guest Star Henry Murph N.D. Detective Harold Guest Star Adam Rodriguez Uniform Cop Guest Star Mark Tinker Executive Producer David Mills Writer Paris Barclay Director