Alex O'Loughlin Steve McGarrett Actor Scott Caan Danny "Danno" Williams Actor Chi McBride Lou Grover Actor Jorge Garcia Jerry Ortega Actor Meaghan Rath Tani Rey Actor Taylor Wily Kamekona Actor Kimee Balmilero Dr. Noelani Cunha Actor Dennis Chun Sgt. Duke Lukela Actor Ian Anthony Dale Adam Noshimuri Actor Beulah Koale Junior Reigns Actor Kunal Sharma Koa Rey Guest Star Shi Ne Nielson Carrie Nakahara Guest Star Tongai Arnold Chirisa Don Guest Star Kendall Prochnow Sgt. Frank Bellina Guest Star Devin Ratray Harris Stubman Guest Star Michael Hake Chris Kosaki, Dylan Shu Guest Star Joanna Sotomura Mila Guest Star David Kaufman Trent Sanders Guest Star Kamakani De Dely Lead Kidnapper Guest Star Wesley Cortez Mark Tuilau Guest Star Cidni Romias Akela Nakahara Guest Star Kanani Dias Becky Guest Star Konoa Goo Chad Guest Star Spike Jones Stedman Kid Guest Star Reno David Mr. Kalani Guest Star Peter M. Lenkov Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Eric Guggenheim Executive Producer Rob Hanning Writer Rachael Paradis Writer Ruba Nadda Director