Alex O'Loughlin Steve McGarrett Actor Scott Caan Danny "Danno" Williams Actor Daniel Dae Kim Actor Grace Park Actor Mark Dacascos Guest Star Claire van der Boom Guest Star Teilor Grubbs Guest Star Taylor Wily Kamekona Guest Star Larisa Oleynik Guest Star Jean Smart Guest Star Kelly Hu Guest Star Brian Yang Guest Star Val Lauren Guest Star Shane Seggar Guest Star Kelvin Han Yee Guest Star Garret Sato Guest Star Dennis Chun Sgt. Duke Lukela Guest Star Marika Yamato Guest Star Jon Sakata Guest Star Alex Kurtzman Executive Producer Roberto Orci Executive Producer Peter M. Lenkov Writer Paul Zbyszewski Writer Brad Turner Director