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 Teilor Grubbs Grace Williams Guest Star Kunal Sharma Koa Rey Guest Star Claire van der Boom Rachel Hollander Guest Star Zach Sulzbach Charlie Williams Guest Star Shawn Mokuahi Garnett Flippa Guest Star Regi Davis Elliott Gil Guest Star Amelia Cooke Doctor Guest Star Markus Silbiger Keith Guest Star Dat Phan Dr. Alvin Zhang Guest Star Marcus Young Security Guard Guest Star Shane Miyashiro HPD Uni Guest Star Antonio Bustamante Jr. HPD Narcotics Officer Guest Star Tahiti Rey Jinny Guest Star Brandon Finn Dillon Guest Star Kailee Regan Brandt Cameron Ross Guest Star Phil Fu-Kang Wang Darryl Ross Guest Star Matt T. Schewe Nathan Cowell Guest Star Heidi Chang Nurse Guest Star Ana Cabrol Katie Gil Guest Star Peter M. Lenkov Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Eric Guggenheim Executive Producer Zoe Robyn Writer Roderick Davis Director