Main cast •
Alex O'Loughlin as Lieutenant Commander Steven "Steve" McGarrett,
United States Navy Reserve and leader of the Five-O Task Force •
Scott Caan as Detective Sergeant Daniel "Danny" "Danno" Williams •
Daniel Dae Kim as Detective Lieutenant Chin Ho Kelly •
Grace Park as Officer Kono Kalakaua •
Masi Oka as Dr. Max Bergman, Chief Medical Examiner •
Chi McBride as Captain Lou Grover •
Jorge Garcia as Jerry Ortega, Special Consultant
Recurring Guest stars ==Episodes==