Alex O'Loughlin
Steve McGarrett (25 eps)
Scott Caan
Danny "Danno" Williams (25 eps)
Ian Anthony Dale
Adam Noshimuri (25 eps)
Meaghan Rath
Tani Rey (25 eps)
Beulah Koale
Junior Reigns (25 eps)
Dennis Chun
Duke Lukela (25 eps)
Kimee Balmilero
Dr. Noelani Cunha (25 eps)
Chi McBride
Lou Grover (25 eps)
Taylor Wily
Kamekona Tupuola (25 eps)
Jorge Garcia
Jerry Ortega (25 eps)
Rochelle Aytes
Greer (4 eps)
Kunal Sharma
Koa Rey (3 eps)
Eric Scanlan
Natano Reigns (3 eps)
Joey Lawrence
Aaron Wright (2 eps)
Sonny Saito
Hajime Masuda (2 eps)
Brittany Ishibashi
Tamiko Masuda (2 eps)
Taylor Gray
Kahele (2 eps)
Claire van der Boom
Rachel Hollander (2 eps)
Jack Coleman
Miller (2 eps)
Eric Steinberg
Captain Keo (2 eps)
Clifton Powell
Percy Grover Jr. (2 eps)
Al Harrington
Mamo Kahike (1 eps)
Charlie Saxton
Ricky Schiff (1 eps)
Duane 'Dog' Chapman
Himself (1 eps)
Anna Enger Ritch
Layla (1 eps)
Jon Chaffin
Damien Batista (1 eps)
Chosen Jacobs
Will Grover (1 eps)
Ryan Bittle
John McGarrett (1 eps)
Dana Lee
Mr. Kimura (1 eps)
Brian Howe
Carl (1 eps)
Michelle Hurd
Renee Grover (1 eps)
Chris Vance
Harry Langford (1 eps)
Becky Wu
Claire Willoughby (1 eps)
Page Leong
Dr. Tara Chu (1 eps)
Terry O'Quinn
Joe White (1 eps)
Willie Garson
Gerard Hirsch (1 eps)
Mark Dacascos
Wo Fat (1 eps)
Amelia Cooke
Doctor (1 eps)
David S. Jung
Daniel (1 eps)
Jimmy Buffett
Frank Bama (1 eps)
Maddie Nichols
Annie Kehr (1 eps)
Olivia Jordan
Girlfriend - 1980 (1 eps)
Raoul Max Trujillo
Alejandro Vega (1 eps)
Ted McGinley
FBI Special Agent Sam Collins (1 eps)
Russell Satele
Clerk (1 eps)
Matthew Lawrence
Josh Baker (1 eps)
Taryn Manning
Mary Ann McGarrett (1 eps)
Andrew Lawrence
Eric Russo (1 eps)
John Clarence Stewart
Hilo (1 eps)
Sasha Colby
Malie (1 eps)
Brad Beyer
Tim Cole (1 eps)
Joel Steingold
Park (1 eps)
Alvin Ing
Mr. Kojima (1 eps)
Roger Yuan
Kang (1 eps)
Lamont Thompson
Kray (1 eps)
Mandy June Turpin
Mrs. Sarah Dresden (1 eps)
Jennifer L. Marshall
Colonel Bailey (1 eps)
Rey Valentin
Noa Alana (1 eps)
Mary Lynn Rajskub
Crystal (1 eps)
Derek Basco
Ano (1 eps)
Jay Hector
Boyfriend - 1980 (1 eps)
Nazneen Contractor
Emma Warren (1 eps)
Eddie Cahill
Carson Rodes (1 eps)
Gabriel Mann
Lee Berg (1 eps)
Sarah Dumont
Julia Berg (1 eps)
Richard Herd
Old Milton (1 eps)
Chris Mulkey
Pettifer (1 eps)
Louis Gossett Jr.
Lou's father (1 eps)
Gladys Knight
Lou's mother (1 eps)
John Lavelle
Patrick (1 eps)
Phoebe Neidhardt
Sharon (1 eps)
Matthew Arkin
Michael Pope (1 eps)
Stan Egi
Captain Ishikawa (1 eps)
Wyatt Nash
The Guardian (1 eps)
Cody Gomes
Niko (1 eps)
David Keith
Wade Gutches (1 eps)
Ben Youcef
Omar Hassan (1 eps)
Kristen Dalton
Lucia Bama (1 eps)
Dat Phan
Dr. Alvin Zhang (1 eps)
Reed Diamond
Claude Nostromo (1 eps)
Jeff Galfer
Jim Walker (1 eps)
Angela Lin
Linda Brady (1 eps)
Haley Webb
Lisa Kamaka (1 eps)
Riley Baron
Connor Russell (1 eps)
Graham Beckel
Roger Barton (1 eps)
Greg Serano
Jameson (1 eps)
Bob Hiltermann
Hall (1 eps)
Ginifer King
Jocelyn Greene (1 eps)
Kristina Emerson
Makani (1 eps)
J. J. Soria
Tory (1 eps)
Michael Ironside
Robert Castor (1 eps)
Nathin Art Butler
Nick Towne (1 eps)
Joan Collins
Amanda Savage (1 eps)
Tim Lounibos
Mr. Chen (1 eps)
Brett Zimmerman
Derek (1 eps)
Patricia Velásquez
Teresa Estrada (1 eps)
Wayne Alon Scott
Kahoni (1 eps)
Jason Brooks
Owen Pearsen (1 eps)
Colin Cunningham
Scott Hester (1 eps)
Thomas Blake Jr.
Michael Manoa (1 eps)
Keisuke Hoashi
Basil Inouye (1 eps)
Alexander Wraith
Aleki (1 eps)
Teri Reeves
Abby Craft (1 eps)
Miles Emmons
Blake (1 eps)
Nikki McKenzie
Bailey Tyler (1 eps)
José Zúñiga
Flores (1 eps)
Natalee Linez
Lindsey (1 eps)