Season 10

<-Season 9

The tenth and final season of Hawaii Five-0 premiered on September 27, 2019 on CBS, and concluded the series on April 3, 2020.

Main

 * Alex O'Loughlin as Commander Steve McGarrett
 * Scott Caan as Detective Danny Williams
 * Ian Anthony Dale as Officer Adam Noshimuri
 * Meaghan Rath as Officer Tani Rey
 * Jorge Garcia as Special Consultant Jerry Ortega (episode 1)
 * Beulah Koale as Officer Junior Reigns
 * Katrina Law as Quinn Liu
 * Chi McBride as Captain Lou Grover
 * Taylor Wily as Kamekona Tupuola
 * Kimee Balmilero as Dr. Noelani Cunha
 * Dennis Chun as Sergeant Duke Lukela

Recurring

 * Rob Morrow as Wes Cullen
 * Joey Lawrence as Aaron Wright
 * Sonny Saito as Hajme Masuda
 * Brittany Ishibashi as Tamiko Masuda
 * Fernando Chien as Kenji
 * Zach Sulzbach as Charlie Williams
 * Nia Holloway as Siobhan

Guest

 * Eugenia Yuan as Daiyu Mei
 * Masi Oka as Max Bergman
 * Christine Lahti as Doris McGarrett
 * Presilah Nunez as Dr. Emma Okino
 * Cassandra Hepburn as Junior's Mother
 * Meta World Peace as Himself
 * Michelle Hurd as Renee Grover
 * Colby Ryan McLaughlin as Luke
 * Kate Siegel as Leslie
 * Sumalee Montano as Yang
 * Jack Cutmore-Scott as Gabe/Michael Blanton
 * Suzanne Cryer as Suzanne
 * Jean Ota as Iolana Cunha
 * Roy M. Balmilero as Joseph Cunha
 * Lance Gross as Lincoln Cole
 * Mark Dacascos as Wo Fat
 * James Marsters as Victor Hesse
 * William Sadler as John McGarrett
 * Michelle Borth as Catherine Rollins

Crossover appearance

 * Jay Hernandez as Thomas Magnum
 * Perdita Weeks as Juliet Higgins
 * Zachary Knighton as Orville "Rick" Wright
 * Stephen Hill as Theodore "TC" Calvin

Trivia

 * The season includes a crossover with Magnum P.I.
 * On May 9, 2019, it was renewed for the tenth season along with five drama series.
 * On June 13, 2019, the series has been scheduled on Friday, September 27 at 8:00pm, right before Magnum P.I.
 * The series would film in Oahu on July 17, 2019 and wrapping up on March 30, 2020.
 * In the Season 9 finale of Hawaii 5 0 we saw Omar Hassan's wife pull out a 3D Made Pistol and shoot Steve presumably but she could have shot Jerry.
 * On September 27, 2019, following the season premiere Jorge Garcia announced that he's leaving after four seasons planning not to renew his contact.
 * On February 28, 2020, it was announced that the tenth season would be the final season.
 * On March 12, 2020, due to the March Madness violation, CBS announced that with the timeslot being opened up, the series finale would be split into two parts, the first part airing on March 27, with the second part airing on April 3, while keeping the series' regular timeslot.