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 Henry Stram Guest Star Leslie Hendrix Guest Star Dennis Boutsikaris Guest Star Peter McRobbie Guest Star Susan Blommaert Guest Star Megan Byrne Guest Star Mark Kenneth Smaltz Guest Star Lee R. Sellars Guest Star John Di Benedetto Guest Star Dick Wolf Executive Producer William M. Finkelstein Executive Producer Arthur Penn Executive Producer