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 Fred Dalton Thompson Arthur Branch Actor Ellen McLaughlin Guest Star Janet Zarish Guest Star Don Billett Guest Star Charissa Chamorro Guest Star Leslie Hendrix Guest Star Martin Kildare Guest Star Mark Alan Gordon Guest Star Helmar Augustus Cooper Guest Star Lynn Cohen Guest Star Dick Wolf Executive Producer William M. Finkelstein Executive Producer Arthur Penn Executive Producer