Chris Noth returns as Det. Mike Logan, whom he played on "Law & Order" from 1990 to '95. In the episode, he's investigating the murder of a guard at a prison where his girlfriend (Arija Bareikis) is a nurse. Plumm: Wayne Duvall. De La Cruz: Alfredo Narciso. Hausman: Steve Cirbus. Clay: Myron Primes.