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 Kimee Balmilero Dr. Noelani Cunha Actor Dennis Chun Sgt. Duke Lukela Actor Beulah Koale Junior Reigns Actor Joey Lawrence Aaron Wright Guest Star Claire Forlani Alicia Brown Guest Star Vivan Dugré Hannah Bell Guest Star James Frain Sebastian Wake Guest Star Matt Riedy Warden Guest Star Michele Carroll Marissa Walker Guest Star Mariah Phommachanh 12-Year-Old Marissa Walker Guest Star Rylee Brooke Kamahele Lacey Bell Guest Star Eliza Escano Defense Attorney Guest Star Eric Nemoto Prosecuting Attorney Guest Star Norm Dabalos Doctor Guest Star Walter Espiritu HPD Uniform Guest Star Cleavandor Wright Desk Guard Guest Star Kaliq Rashad Prison Cell Officer Guest Star Geoff Heise Justice Gregory Parnell Guest Star Peter M. Lenkov Executive Producer, Writer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Eric Guggenheim Executive Producer, Writer Bronwen Hughes Director