Alex O'Loughlin
Steve McGarrett (25 eps)
Scott Caan
Danny "Danno" Williams (25 eps)
Grace Park
Kono Kalakaua (25 eps)
Daniel Dae Kim
Chin Ho Kelly (25 eps)
Chi McBride
Lou Grover (25 eps)
Masi Oka
Dr. Max Bergman (25 eps)
Jorge Garcia
Jerry Ortega (25 eps)
Christopher Sean
Gabriel Waincroft (5 eps)
Anthony Ruivivar
Marco Reyes (3 eps)
Ken Narasaki
Ke'ano Kalakaua (2 eps)
Dennis Chun
Sgt. Duke Lukela (1 eps)
Al Harrington
Mamo Kahike (1 eps)
Greg Ellis
Thomas Farrow (1 eps)
Mirrah Foulkes
Ellie Clayton (1 eps)
Martin Copping
Paul Clayton (1 eps)
Patrick St. Esprit
Vice Admiral Rhodes (1 eps)
Marina Fonseca
Sophie Larkin (1 eps)
Amanda Setton
Dr. Mindy Shaw (1 eps)
Matthew Lund
Browser / Lt. Colin Helms (1 eps)
Wes Robinson
Teddy (1 eps)
David DeLuise
Brad Weiss (1 eps)
Nick Searcy
Ned Burrows (1 eps)
Chanel Marriott
Young Ellie Clayton (1 eps)
Laiman Severson
Aaron Cole (1 eps)
Eric Dickerson
Himself (1 eps)
Gavin Rossdale
Johnny Moreau (1 eps)
Tracy Ifeachor
Eris (1 eps)
Nicolai Makana Perez
Young Steve (1 eps)
Pomai Lopez
Nurse M. Sanborn (1 eps)
Olena Heu
Reporter (1 eps)
Al Furuto
Manager (1 eps)
Larisa Oleynik
Jenna Kaye (1 eps)
Frankie Valli
Leonard Cassano (1 eps)
Charlie Carver
Travis Kealoha (1 eps)
Nathan Kress
Jake Kealoha (1 eps)
John Billingsley
Eugene Goodman (1 eps)
Wilke Itzin
Tai Gable (1 eps)
Josie Davis
Patti Gable (1 eps)
Shawn Garnett
Flippa (1 eps)
Carol Burnett
Deb McGarrett (1 eps)
Larry Manetti
Nicky “The Kid” Demarco (1 eps)
Adam Burnett
Agent Patrick Corin (1 eps)
Michael Imperioli
Odell Martin (1 eps)
David Cordell
Sidney Ames (1 eps)
Frank Bayot
Valet (1 eps)
Tudor Munteanu
Emil Hossa (1 eps)
Ma'a Tanuvasa
Sheriff Marcus Kalawaia (1 eps)
Ana Alexander
Danielle (1 eps)
David Hirokane
Executive #1 (1 eps)
Cloris Leachman
Ruth Tennenbaum (1 eps)
Jon Lovitz
Barry Burns (1 eps)
Charlie Saxton
Ricky Schiff (1 eps)
Jessica Lowndes
Emma Mills (1 eps)
Arden Cho
Mia Price (1 eps)
Zoltán Hayth
Jacob Anders / Radomir Ivanovich (1 eps)
Allie Gonino
Lea Nohoa (1 eps)
Jaleel White
Nolan Fremont (1 eps)
Pauly Shore
Jake Lockhard (1 eps)
Kevin Farley
Mickey Dickson (1 eps)
Todd Robert Anderson
Raymond Garvey (1 eps)
Michael Jeong
Landen Pang (1 eps)
Camila Banus
Tori Onuma (1 eps)
Emmanuelle Roumain
Calina Franco (1 eps)
Danny Cooke
Grant Sutherland (1 eps)
HPD Police Chief Kealoha
Himself (1 eps)
Brandon Marc Higa
Room Service Attendant (1 eps)
Cassie Dzienny
Halona Wilson (1 eps)
Kaui Kauhi
Kazuki Takata (1 eps)
Ryan Pagan
HPD Officer (1 eps)
Elvi Alberto
Female Hot Employee (1 eps)
Emily Heskett
Hot Girl #1 (1 eps)
Tessa Goodwin
Hot Girl #2 (1 eps)
Nira Torres
Woman (1 eps)
Duane 'Dog' Chapman
Himself (1 eps)
Calico Cooper
jane miller (1 eps)
Willie Garson
Gerard Hirsch (1 eps)
James Marsters
Victor Hesse (1 eps)
Matthew Sato
Boy #1 (1 eps)
Will Yun Lee
Sang Min (1 eps)
William Sadler
John McGarrett (1 eps)
Claire van der Boom
Rachel Edwards (1 eps)