John Stewart has been one of the most important Green Lantern characters ever since being introduced by Dennis O’Neal and Neal Adams in 1972. He’s run the gambit with achievements in the comics, from multiple stints in the Justice League, to serving as leader of the Green Lantern Corps. The character’s popularity skyrocketed in 2001 when he was made one of the leading heroes in the Justice League animated series.
25 years later, and following failed attempts to use him in the scrapped Justice League: Mortal and Zack Snyder’s Justice League, John finally made his live-action debut in HBO’s Lanterns. Aaron Pierre plays the DC Universe franchise’s John, who was shown in Lanterns first being trained to become a Green Lantern by Kyle Chandler’s Hal Jordan in 2016, and then solving his mentor’s murder in 2026.
Aspects of John’s comic book background were retained for Lanterns, including him having served in the Marines as a sniper, and then becoming an architect. At the same time, as is the case with any adaptation, the DC TV show also took creative liberties with the Green Lantern mythology, resulting in some notable changes for John.
John Was Trained From Infancy To Be A Green Lantern
In the comics, John was selected as an adult to become a backup Green Lantern in the comics after Gardner was injured in a car accident, and he’d had no contact with Hal Jordan or any other Green Lantern before that. In Lanterns, John’s parents trained him from when he was an infant to become a Green Lantern.
This happened after his father was passed over in 1986 when he admitted to being fearful. This ring to choose Hal as Abin Sur’s successor instead, but then Lianna, one of the Guardians of the Universe, informed John’s mother that he had the potential to become a Green Lantern someday. So they trained their son for almost the entirety of his life to be fearless, and it paid off, as Lianna recruited John as an adult.
John Precedes Guy Gardner
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Guy Gardner was the second human to be recruited into the Green Lantern Corps, albeit as a replacement for Hal in case he was ever injured. It was only when Guy himself was injured that John entered the picture. In contrast, Nathan Fillion’s Guy only became a Green Lantern in the DCU because John declined to join the Green Lantern Corps after the battle in Rushville concluded.
John Was Meant To Be Hal Jordan’s Replacement, Not His Substitute
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Just like in the comics, John was initially presented to Hal as a substitute Green Lantern for him to train in case he’s ever incapacitated. However, that was just a ruse, albeit one he didn’t buy. The Guardians intended from the start for John to replace Hal, as they’d grown tired of disobedience, particularly when it came to getting involved in political disputes on Earth. Given his experiences as a soldier, they believed John would be a more compliant Green Lantern.
John’s Family Looks Quite Different
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In the comics, John’s mother and father are named Henry and Shirley Stewart, respectively. Henry died before John became Green Lantern, and his mother died at the end of the Green Lantern: War Journal series. John also had a sister who died as a child, named Rose in the pre-Flashpoint continuity, and Eleanor post-Flashpoint, though the latter lives on as a sentient construct.
In the DCU, John’s parents are named John Sr. and Bernadette, and both are still alive in 2026. John also has two older brothers instead, named Aaron and Marcus, who are also still alive, working as a musician and fellow architect, respectively.
John Never Technically Joins The Green Lantern Corps
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Although Pierre’s John got to use Hal’s ring a few times in 2016, and later took it from him after killing the Manhunter Zoe, he quickly relinquished it to Lianna, as he’d grown disillusioned with the Green Lantern Corps and the Guardians. By the end of Lanterns season 1, John gets his own lantern to use with Hal’s ring, but it’s not Green Lantern Corps-issued. Instead, it’s a lantern crafted by Sinestro that’s powered by both willpower and fear, so John is a fully independent superhero.
John Is Only Protecting Earth
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As a Green Lantern Corps member, John from the comics has a duty to help protect the entirety of Sector 2814. That’s not the case in the DCU. In the Lanterns season 1 finale, Pierre’s John calls Guy back to Rushville to show him Hal’s ring (which Guy thought was still buried with Hal’s body) and Sinestro’s lantern. John then tells Guy that he’ll be protecting Earth from this point forward, while Guy can handle the rest of Sector 2814.
Guy doesn’t take this ultimatum well, saying that the Guardians will send the Green Lantern Corps after him. Following along with this demand would also interfere with Guy’s duties on the Justice Gang, so it’s unclear how they’ll reach common ground going forward.
Lanterns can be streamed on HBO Max, and Pierre will reprise John Stewart in the upcoming DC movie Man of Tomorrow, which opens in theaters on July 9, 2027.
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