Trivia / Hawaii Five-0

• Actor Leaves, Character Dies: Chin and Kono's departures in the season seven finale is due to their actors Daniel Dae Kim and Grace Park quitting after a dispute with the show's producers for not being paid equally as their fellow co-stars Alex O'Loughlin and Scott Caan and thus were replaced by Tani and Junior in the following season.
• Actor-Shared Background: Lou Grover grew up in Chicago, as did his actor Chi McBride.
• California Doubling:
  • With the exception of the aerial footage over Osaka, the scenes in "Ua Hapa" where Steve looks for Wo Fat in Japan were actually filmed in downtown Honolulu. You could even see the Top of Waikiki through Wo Fat's hotel window.
  • Averted in Season 4 when Kono was searching for Adam, eventually finding him in Vancouver. Grace Park had small parts in (or outright missed) several episodes due to her maternity leave, but filmed a few scenes in her hometown of Vancouver before returning to Hawaii to resume her role full-time.
• The Danza: Actress Michelle Krusiec plays the Yakuza's crime lady Michelle Shioma.
• Defictionalization: A throwaway reference to "Kukui High School" in the pilot has led to fans creating a whole backstory for an otherwise fictional school, complete with logo wear. In Hawaii, high schools are a big deal.
• Directed by Cast Member: Alex O'Loughlin directed two episodes, Daniel Dae Kim directed one.
• Fake American:
  • Alex O'Loughlin. When in character as Steve McGarrett, he sounds just like an American; when out of character (such as when being interviewed or doing promotional appearances) his Australian accent is unmistakable. Yet again, Steve's American accent is almost too pretty to be real.
  • Also, Korean-Canadian Grace Park as Kono. But do know that Grace also has American citizenship, since the Canadian government does allow dual citizenship. So it may not be totally true.
  • Tony Curran as a Boston-born Irish mob hitman in "Ike Maka".
  • Tani's actress Meaghan Rath is Canadian.
  • Junior's actor Beulah Koale is New Zealander.
• Fake Brit: Australian actress Clare van der Boom as Danny's British-born ex-wife Rachel.
• Fake Nationality: Irish-Korean American Daniel Henney as Japanese American Michael Noshimuri. Not the first time that he has played a Japanese American.
• Playing Against Type: Coach Tanaka as a Filipino terrorist.
• Produced By Castmember: Alex O'Loughlin became a producer in season ten.
• Real-Life Relative:
  • James Caan (father of Scott Caan) guest starred in "Lekio" as a former cop/murder suspect.
  • Daniel Baldwin plays Paul Delaney in season 3, brother of Frank Delaney played by William Baldwin.
  • That wife who was caught by her husband on his boat (named after her) cheating with his best friend/employee on "Hoa Pili"? The wife and the lover are none other than Tara Platt and Yuri Lowenthal, who are a real life husband-and-wife team known mostly for their voice work.
  • Kimee Balmilero plays Dr. Noelani Cunha. Her father, Roy, plays Joseph Cunha in Nalowale i ke 'ehu o he kai (Lost in the Sea Sprays).
  • Chuck Norris makes a cameo appearance in A 'ohe ia e loa'a aku, he ulua kapapa no ka moana (He Cannot Be Caught for He is an Ulua Fish of the Deep Ocean). His son, Eric, is the series' stunt coordinator.
• What Could Have Been:
  • Reportedly James McArthur (the original show's Danny) was set to play Danny's father in the remake when he unexpectedly died. The role was actually Mamo Kahike, which was eventually played by Al Harrington (making him the first regular from the original show to appear).
  • The show was originally conceived as a Sequel Series to the original series, focusing on McGarrett's son Steve Jr. with Criminal Minds show runner Edward Allen Bernero set to helm the project before it was scrapped when Alex Kurtzman and Roberto Orci took over the project and changed it into a Continuity Reboot instead.
  • The Ventures, a Surf Rock group who is best known for their rendition of the show's theme song since they released it as a single in 1969, submitted a new re-recording of the song for the opening theme, but was turned down.
  • A synthesized version of the opening theme as arranged by Brian Tyler was also considered, but it received a negative reception. In the end, Tyler re-recorded a new version of the opening theme, this time staying as close to the 1968 version as possible.
  • Prior to the network and show runner's decision to end the show after a decade due to Alex O'Loughlin's recovery from on-set injuries and contracts that were set to end said season, there were plans for an eleventh season with Lance Gross joining as series regular as he was confirmed to guest star in the two-part tenth season finale, along with the possibility of said season ultimately ending up as a Sequel Series with Danny being the main protagonist after the show was confirmed to end but the producers decided not to go with that idea.
  • Kamekona and Duke almost appeared in the final two episodes but their scenes were cut due to time constraints, hence their absences from it.
  • Wil Yun Lee mentioned that he couldn't make the time to be in the final episode due to things beyond his control, even for a cameo.
  • There were almost plans to have Chin Ho and Kono returning Back for the Finale with their actors Daniel Dae Kim and Grace Park reprising their roles, ableit in a cameo at the end but sadly, it never materialised as Peter M. Lenkov admitted in a post-finale interview that they deserved more than a cameo for the finale in addition to their actors' busy commitments in The Good Doctor and A Million Little Things, respectively.
  • A cliffhanger ending for the series finale, which would've led to season 11, was shot and focused on Adam and the Yakuza before it was cut following the decision to end after ten seasons.
• Written-In Infirmity: Scott Caan injured his knee in Season 1, leading them to writing in a knee injury for Danny to explain why he's limping around with a cane for a few episodes.

---