Alex O'Loughlin Steve McGarrett Actor Scott Caan Danny "Danno" Williams Actor Ian Anthony Dale Adam Noshimuri Actor Meaghan Rath Tani Rey Actor Jorge Garcia Jerry Ortega Actor Beulah Koale Junior Reigns Actor Chi McBride Lou Grover Actor Katrina Law Quinn Liu Actor Taylor Wily Kamekona Actor Dennis Chun Sgt. Duke Lukela Actor Kimee Balmilero Dr. Noelani Cunha Actor Joey Lawrence Aaron Wright Guest Star Kirstin Leigh Yumi Chun Guest Star Robert M. Lee Jaa Sung Guest Star Michael Chapmen Gary Guest Star Lee Anne Kuper Officer Kama Guest Star John Bahng Officer Melekaua Guest Star Kevin E. West Major General Avea Guest Star Jana Park Moore CID Tech Sakai Guest Star Christopher J. Lopez Lieutenant Thompson Guest Star Michael Hasegawa Building manager Guest Star Peter M. Lenkov Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Eric Guggenheim Executive Producer Zoe Robyn Writer Peter Weller Director