Jerry Orbach Det. Lennie Briscoe Actor Jesse L. Martin Ed Green Actor S. Epatha Merkerson Lt. Anita Van Buren Actor Sam Waterston Exec. Asst. D.A. Jack McCoy Actor Elisabeth Röhm Serena Southerlyn Actor Dianne Wiest Nora Lewin Actor Cathy Moriarty Guest Star Katherine Moennig Guest Star Paul Diomede Guest Star Mark Margolis Guest Star Jordan Charney Guest Star Leslie Denniston Guest Star Joseph La Rocca Guest Star Jack Gilpin Guest Star Maggie Moore Guest Star Dick Wolf Executive Producer William M. Finkelstein Executive Producer Arthur Penn Executive Producer