Suspicious wrinkles emerge in serial killings on Oahu. McGuire: Stanley Tucci. Sydney: Mary Page Keller. Alyce: Wendy Kilbourne. Lt. Arioto: Clyde Kusatsu. Marshall: Jay Sanders. Parkes: Stephen Meadows. Det. Luna: Finn Carter. Charlie: Mark Thomas Miller. Keanu: Lori Tan Chinn. Coproduced by Tom Selleck.