Kyle Chandler and Aaron Pierre respectively star as Hal Jordan and John Stewart, alongside Kelly Macdonald.
After James Gunn and Peter Safran became co-CEOs of DC Studios in October 2022, the series was redeveloped to focus on Jordan and Stewart.
[13] The series could not make use of the main Green Lanterns from the comic books, Hal Jordan and John Stewart, because they were being reserved for DC Extended Universe (DCEU) films.
[13] In April 2021, the series was revealed to be primarily focusing on Scott, a secretly gay FBI agent in 1941 who becomes Earth's first Green Lantern; and Gardner, an "embodiment of 1980s hyper-patriotism", alongside the half-alien Bree Jarta in 1984.
The new company was expected to restructure DC Entertainment and Zaslav began searching for an equivalent to Marvel Studios president Kevin Feige to lead the new subsidiary.
[24] James Gunn and Peter Safran were announced as the co-chairs and co-CEOs of the newly formed DC Studios at the end of that month.
[25] A week after starting their new roles, the pair had begun developing an eight-to-ten-year plan for a new DC Universe (DCU) that would be a "soft reboot" of the DCEU.
This version features the two best-known Green Lanterns, Hal Jordan and John Stewart, and Safran said it would be an Earth-based detective story rather than the space opera that Berlanti had envisioned.
[30][31] The following month, Chris Mundy was reported to be serving as showrunner while Tom King, a member of the DC Studios writers' room, was also attached as a producer.
[4] The series received an eight-episode straight-to-series order from Max's corporate sibling channel HBO the next month, when Mundy was confirmed as showrunner and executive producer.
[36] Nathan Fillion was cast as Guy Gardner for the DCU film Superman (2025) in July 2023,[37] and he was expected to co-star in the series by September 2024.
The actor was looking for a new television role following the cancelation of his series Outer Range (2022–2024) and had previously played the DC Comics character Jonah Hex in the 2010 film of the same name.
Jordan was expected to be the gruff, older partner similar to Danny Glover's Roger Murtaugh in the Lethal Weapon films.
[44] Gunn had almost cast Pierre as Adam Warlock in his Marvel Cinematic Universe (MCU) film Guardians of the Galaxy Vol.
[10] Principal photography had begun by February 14, 2025,[47] taking place in Los Angeles, California, until July 1, 2025,[48] under the working title Latitude.