Alex O'Loughlin Steve McGarrett Actor Scott Caan Danny "Danno" Williams Actor Daniel Dae Kim Actor Grace Park Actor Taryn Manning Actor Taylor Wily Kamekona Guest Star Kelly Hu Guest Star Robert Loggia Guest Star Adam Beach Guest Star Mackenzie Foy Guest Star Tiffany Robinson Guest Star Jennie Lee Sine Guest Star Louis Lombardi Guest Star Eric Elizaga Guest Star Kimberly Hagi Guest Star Massimo Galluzzo Guest Star Michael Trisler Guest Star Alex Kurtzman Executive Producer Roberto Orci Executive Producer Peter M. Lenkov Writer Jim Galasso Writer James Whitmore Jr. Director