Magnum, P.I. Wiki

Magnum P.I. is an American crime drama television series developed by Peter M. Lenkov and Eric Guggenheim which was premiered on September 24, 2018 on CBS. The series is a reboot of the original series, which was aired from 1980 to 1988.

In May 2020, the series has renewed for a third season, which was premiered on December 4, 2020. In April 2021, the series was renewed for a fourth season, which was premiered on October 1, 2021.

Magnum P.I. takes place in the same fictional universe as two other series, both also developed by Lenkov and both also reboots of earlier police shows: Hawaii Five-0 and MacGyver. The three shows have been collectively referred to as the "Lenkov-verse".


As in the original series, the reboot follows Thomas Magnum, a former Navy SEAL turned private investigator who occupies the guest house on the Hawaiian estate owned by famous author Robin Masters. He lives with Juliet Higgins, a former MI6 agent assigned by Masters to protect the estate, and native Hawaiian Kumu Tuileta, who is the estate's cultural curator. (Juliet Higgins replaces the male character Jonathan Higgins from the original series.) Juliet often assists Thomas with his cases, and becomes a full partner in the agency during Season 2. Magnum is also frequently assisted by two former U.S. Marines, Rick Wright and TC Calvin. Rick is now a bar owner, while TC is a pilot whose main business is running helicopter tours of the islands. Magnum tends to butt heads with HPD Detective Gordon Katsumoto, but the two also help each other when needed.


Main article: Cast


Main article: Episode List
Season Episodes Originally aired
Season premiere Season finale
1 20 September 24, 2018 April 1, 2019
2 20 September 27, 2019 May 8, 2020
3 16 December 4, 2020 May 7, 2021
4 22 October 1, 2021



In October 2017, the original series has signed on to produce a remake series with Peter M. Lenkov and Eric Guggenheim for CBS, which owns the rights to Magnum, P.I. through its acquisition of the original Bellisaruis Production and Universal Television. In February 2018, it was announced that CBS had greenlit production of a pilot episode written by both Lenkov and Guggenheim also directed by Justin Lin from Fast & Furious.

On May 11, 2018, the network picked up the series. Co-creator and executive producer Peter M. Lenkov served as the showrunner. On May 16, 2018, CBS released a first video trailer for new series. The pilot episode was aired as a special preview prior to the series San Diego Comic-Con panel.

On July 19, 2018 it was announced that the series was set to see multiple crossover's with Hawaii Five-0. Lenkov confirmed that Kimee Balmilero and Taylor Wily would make guest appearances as their Hawaii Five-0 characters, medical examiner Noelani Cunha and entrepreneur Kamekona Tupuola respectively. Balmilero was set to appear in Episode One while Wily was set to appear in Episode Two. Meanwhile, Alex O'Loughlin's character, Steve McGarrett, was set to cross paths with Hernandez's character later in the season.

On Wednesday, August 22, 2018, with the anticipated landfall of Hurricane Lane, a Category 4 hurricane, in Hawaii, CBS reported that they "were closely monitoring the situation" but that production would continue as planned. The following day CBS temporarily shut down production of both Magnum P.I. and Hawaii Five-0 until further notice.

On October 19, 2018, it was announced that the series had received a full season order consisting of 20 episodes. [1] On January 25, 2019, CBS announced the show was renewed for a second season[2] which premiered on September 27, 2019.

On May 6, 2020, CBS announced that the series was renewed for a third season which was premiered on December 4, 2020.[3][4]

On July 7, 2020, it was reported that Lenkov was fired from his role as executive producer and showrunner following an investigation into allegations that he created a toxic work environment. Guggenheim will replace Lenkov as showrunner.[5]

On April 15, 2021, the series was renewed for a fourth season which was premiered on October 1, 2021.[6]


Jay said on The Late Show that his first question was whether he would have to sport a mustache, but the producers and creative team said no.

In February 20, 2018, Jay Hernandez was announced as the new Magnum[7], also March 2, 2018, Perdita Weeks would play as Juliet Higgins, Magnum's best friend from U.S. army[8], alongside with Zachary Knighton, who played as Rick Wright on May 16 and another Magnum's friend named Theodore "T.C." Calvin portrayed by Stephen Hill on March 21, 2018.[9][10] On July 20, 2018, it was announced that Tim Kang would join the cast as Honolulu PD detective Gordon Katsumoto, who would develop a friendly rivalry with Magnum as they work cases.[11] On July 25, 2018, it was announced Amy Hill had been cast in a recurring role.[12] Both Kang and Hill are debuted in their regular series in this third episode.

Former NFL and CFL football player, Carl Weathers, MLB baseball player, Christian Yelich, and NASCAR driver Ryan Blaney all appeared as guest stars. Roger E. Mosley who starred as Theodore Calvin in the original Magnum, P.I. guest starred in one episode. Selleck stated in an interview that he would never appear in the series even though he was asked as not to take away from the original Magnum, P.I. and due to conflicting filming of Blue Bloods which also airs on CBS. Thornton continued to recur throughout the second and third seasons. Bobby Lee was introduced as a new recurring character in the season and also returned for a guest appearance in the third. Numerous professional athletes appeared in guest roles throughout the season including Deontay Wilder, a World Boxing Council heavyweight champion, Aaron Donald and Andre Reed, National Football League players, Hans Hedemann, a competitive surfer, and Cowboy Cerrone, an Ultimate Fighting Championship mixed martial artist. Patrick Monahan, Skyler Grey, Jerry Becker, and Luis Carlos Maldonado appeared as themselves and performed as their real world band Train. Betsy Phillips, series star Zachary Knighton's wife, appeared in the first seasons final episode. Balmilero, Wily, and Chun also made appearances throughout the second season as their Hawaii Five-0 characters. Other Hawaii Five-0 actors new to the second season include series regulars Meaghan Rath, Katrina Law, Beulah Koale, and Ian Anthony Dale all who appeared as their Hawaii Five-0 characters. In addition, guest stars from Hawaii Five-0 including Larry Manetti, Willaim Forsythe, Shawn Mokuahi Garnett, Willie Garson all appeared as the same characters from Hawaii Five-0 as well. Manetti previously starred on the original Magnum, P.I. as Rick Wright. On October 16, 2020, it was announced that Jay Ali had been cast in a recurring role for the third season as Dr. Ethan Shah. It was later revealed that Lance Lim would also recur in the third season. Mosley again returned as a guest star in the third season. Balmilero, Chun, and Garnett from Hawaii Five-0 continued appearances in the third season despite Hawaii Five-0's cancellation. On August 27, 2021, it was reported that Chantal Thuy joined the cast in an undisclosed capacity for the fourth season.


Following production of the pilot earlier in the year, filming for the first season began on July 23, 2018, with a traditional Hawaiian blessing.

A central theme of the original series was Magnum's constant, if not always approved, use of Mr. Master's vehicles. Then Magnum almost exclusively favored his Ferrari 308 GTS. The 308GTS has become a cultural icon, inextricably linked to the series, such that it was briefly shown in the pilot episode. In 2018, the production team updated his favored vehicle to a Ferrari 488 Spider. Both cars are a mid-engine, rear-wheel-drive, two-seat, roadster variant of the current V8 Ferrari.

Filming for the second season also began with a traditional Hawaiian blessing on July 8, 2019. A new filming location in the second season is the La Mariana Restaurant, an operating Tiki Bar in Hawaii. On July 1, 2020, it was revealed that the series was eyeing a delayed mid-August start date to begin filming as a result of the COVID-19 pandemic. September 14, was later stated as a tentative start date. Filming for the season began two days later on September 16, 2020, with a traditional Hawaiian blessing.[13][14] COVID-19 protocols were required on set including the wearing of masks, social distancing, COVID testing, and reduced cast and crew on set.


Critical response[]

On review aggregation Rotten Tomatoes, the series holds an approval rating of 53% with an average rating of 5.88/10, based on fifteen reviews. The website's critical consensus reads, "The rebooted Magnum P.I. may not be quite distinctive enough to hold up to comparisons with its source material, but a charismatic star, slickly staged action, and a handful of modern twists hint at greater potential." Metacritic, which uses a weighted average, assigned the series a score of 47 out of 100 based on sixteen critics, indicating "mixed or average reviews."


Season Timeslot (ET) No. of
Premiered Ended TV season Rank Avg. viewers
(in millions)
Date Premiere viewers
(in millions)
Date Finale viewers
(in millions)
1 Monday 9:00 PM 20 September 24, 2018 8.12 April 1, 2019 5.54 2018–19 #37 8.36
2 Friday 9:00 PM 20 September 27, 2019 6.40 May 8, 2020 6.09 2019–20 #27 8.91
3 16 December 4, 2020 5.49 May 7, 2021 5.00 2020–21 #24 7.48
4 22 October 1, 2021 5.23 2021–22 #

DVD Release[]

All season sare being released for DVD owned and partnered with CBS/Paramount.

Image DVD Name Ep # Release Date
Magnum PI (2018, Season 1) DVD.jpg
Magnum P.I. - Season 1 20 June 11, 2019
Magnum PI (2018, Season 2) DVD.jpg
Magnum P.I. - Season 2 20 September 1, 2020
Magnum PI (2018, Season 3) DVD.jpg
Magnum P.I. - Season 3 16 September 14, 2021


External Links[]