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 Curtis McClarin Arthur Guest Star Debra Christofferson Geri Turner Guest Star Lourdes Benedicto Gina Colon Guest Star Paige Turco Officer Abby Sullivan Guest Star Willie Garson Henry Coffield Guest Star Wood Harris Hector Guest Star Dwayne Barnes Rodney Guest Star Lillias White Lila Edmonds Guest Star Kevin Cooney Doctor Guest Star Terence Alexander Det. Bauman Guest Star Joe Lisi Giamatti Guest Star Gerry Becker Arnold Cassell Guest Star Viola Davis Woman Guest Star Chuck Cooper Bus Driver Guest Star Barbara Roberts Rosalie Guest Star Adrian Ricard Landlady Guest Star Lou Piccoli Uniform 1 Guest Star Billy Concha Uniform 2 Guest Star Rick Tirelli E.S.U. Guy Guest Star Jean Hubbard Screaming Woman 1 Guest Star Von Gray Screaming Woman 2 Guest Star Steven Bochco Executive Producer David Milch Executive Producer Theresa Rebeck Writer Mark Tinker Director