Guest Stars Milissa Sears as Leah Novak Anne Gee Byrd as Dr. Evelyn Bernhard Joshua Chang as Naval Intelligence Specialist Jason Renfro Grant Jordan as Grant / Young Man Tui Asau as Prophet Mahee Mahee / Emmett Westerhouse Co Starring Duncan Campbell as NCIS Special Agent Castor Michael Ocampo as Navy Officer First Class Adrian Vargas