After seven seasons, Masi Oka will exit Hawaii Five-0 as a series regular, EW has learned exclusively.
Oka joined the series in season 1 as Dr. Max Bergman, the Chief Medical Examiner who has assisted Five-0 in solving crimes since the fifth episode of the series — first as a recurring character, and then as a series regular starting in season 2.
Source: Hawaii Five-0: Masi Oka exiting after seven seasons | EW.com