Alex O'Loughlin Steve McGarrett Actor Scott Caan Danny "Danno" Williams Actor Chi McBride Lou Grover Actor, Writer 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 Kekoa Kekumano Nahele Actor Shawn Mokuahi Garnett Flippa Actor Michelle Hurd Renee Grover Actor Chosen Jacobs Will Grover Actor Al Harrington Mamo Kahike Actor Shawn Thomsen Pua Kai Actor Kunal Sharma Koa Actor Clifton Powell Percy Lee Grover Jr. Guest Star Louis Gossett Jr. Percy Grover Sr. Guest Star Gladys Knight Ella Grover Guest Star Janice Morimoto Cashier Guest Star Eli Foster John Henman Guest Star John Lavelle Patrick Hale Guest Star Adele Chu Mrs. Lee Guest Star Mike Buck Fire Captain Guest Star Kevin Keaveney Shop Owner Guest Star Peter M. Lenkov Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Eric Guggenheim Executive Producer Carlos Bernard Director