Ron Nakahara

When Morland offers to help get Joan and Sherlock reinstated as consultants to the NYPD, Sherlock questions his father's motives. Joan works with the FBI during the investigation of a triple homicide.

As internal affairs press Voight, a massacre at a Triad den brings him back into contact with a former partner.

When a computer sting uncovers the possible mole in the CIA arms smuggling ring, Elizabeth suspects there may be a larger force at play.

When a monkey bites and kills a lab worker, the animal rights activist who tried to free the primates is charged with murder.