Season 6

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The sixth season of Hawaii Five-0 premiered on September 25, 2015 on CBS and concluded on May 13, 2016. The season consisted of 25 episodes.

Description
Led by Steve McGarrett (Alex O'Loughlin) and Danny "Danno" Williams (Scott Caan), the Hawaii Five-0 team faces some of the most terrifying criminals ever as they fight to enforce law and order in paradise. With his kidnapped brother's life on the line, Danny scrambles to get the money to save him and Chin Ho Kelly (Daniel Dae Kim) puts his own career on the line to help. Steve meets a woman who helps him reopen his late father's last unsolved case, Kono Kalakua (Grace Park) and Chin are taken hostage while undercover in the black market world of priceless art, Steve is kidnapped by Wo Fat and in the aftermath of his daughter's kidnapping, Lou Grover (Chi McBride) becomes more accepting of the team's less-than-upstanding tactics to keep the islands safe. It's a high side of thrills in 25 action-packed episodes that you don't want to miss.
 * From the Region 2 DVD:

Main Cast

 * Alex O'Loughlin as Commander Steve McGarrett
 * Scott Caan as Detective Danny Williams
 * Daniel Dae Kim as Lieutenant Chin Ho Kelly
 * Grace Park as Officer Kono Kalakaua
 * Masi Oka as Dr. Max Bergman
 * Jorge Garcia as Jerry Ortega
 * Chi McBride as Lou Grover

Recurring characters

 * Ian Anthony Dale as Adam Noshimuri
 * Taylor Wily as Kamekona Tupuola
 * Dennis Chun as Sergeant Duke Lukela
 * Teilor Grubbs as Grace Williams
 * Lili Simmons as Melissa Armstrong
 * Sarah Carter as Lynn Downey
 * Taryn Manning as Mary McGarrett
 * Michael Imperioli as Odell Martin
 * Michelle Borth as Catherine Rollins
 * Julie Benz as Abby Dunn
 * Christopher Sean as Gabriel Waincroft
 * Zach Sulzbach as Charles Williams
 * Will Yun Lee as Sang Min
 * Shawn Mokuahi Garnett as Flippa Tupuola
 * Shawn Anthony Thomsen as Pua Kai
 * Richard T Jones as Governor Samuel Denning

Guest Stars

 * Carol Burnett as Debora McGarrett
 * Michelle Pfeiffer as Mrs. Tom Samsly
 * Sung Kang as Dae Wan
 * Londyn Silzer as Sara Waincroft
 * George Kee Cheung as Yao Fat
 * Duane "Dog" Chapman as Himself
 * Kala Alexander as Kawika

Trivia

 * Hawaii Five-0 Season 6 aired alongside NCIS Season 13, NCIS: Los Angeles Season 7 and NCIS: New Orleans Season 2.