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 Dennis Chun Sgt. Duke Lukela Actor Ian Anthony Dale Adam Noshimuri Actor Beulah Koale Junior Reigns Actor Chosen Jacobs Will Grover Guest Star Michelle Hurd Renee Grover Guest Star Devon Sawa Brad Woodward Guest Star Aaron Yoo Hideki Tashiro Guest Star J. Downing John Lefotu Guest Star Darah Dung Driver 2 Guest Star Kenric Green Detective Keegan Guest Star Stephanie Anne Lewis Therapist Voice Guest Star Renata Guarana Clara Molina Guest Star Quinton Ray 10 Year Old Will Grover Guest Star Kate Tobia Tracy Woodward Guest Star Peter M. Lenkov Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Eric Guggenheim Executive Producer Sean O'Reilly Writer Roderick Davis Director