Alex O'Loughlin Steve McGarrett Actor Scott Caan Danny "Danno" Williams Actor Daniel Dae Kim Actor Grace Park Actor Teilor Grubbs Guest Star Michelle Borth Guest Star Taylor Wily Kamekona Guest Star Joel David Moore Guest Star Brian Goodman Guest Star Joanna "JoJo" Levesque Guest Star John Sullivan Guest Star Agnes Bruckner Guest Star Tamayo Perry Guest Star Dennis Chun Sgt. Duke Lukela Guest Star Melissa Puana-Martin Guest Star Al Harrington Guest Star Peter M. Lenkov Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Melissa Glenn Writer Jessica Rieder Writer Duane Clark Director