Nathan Fillion details Guy Gardner appearance in Lanterns
Actor Nathan Fillion spent weeks trying to convince close personal acquaintances of his actual participation in Lanterns after sitting out the first five episodes. The performer explained that his prolonged absence made colleagues doubt his cast involvement.
“Thank goodness HBO has been kind enough to use my face up on the placard on the screen!” Fillion remarked.
Episode 6 reintroduces Guy Gardner as the new Green Lantern following the definitive departure of John Stewart, played by Aaron Pierre, who surrendered the power ring. The comedic superhero, distinguished by his bowl haircut, entered the narrative set in the 2026 timeline when John Stewart returned to Rushville to meet Hal Jordan one last time before authorities discovered Jordan dead in the sports bleachers.
“It’s nice that there’s a bunch of us witnessing the birth of the DC Universe that’s being thrown at us in these pieces, and Guy Gardner is becoming a thread in the backdrop,” Fillion said about his character being a public element.
Gardner travels to a detention facility to meet Stewart after receiving an emergency alert transmitted directly from Rushville. Stewart breaks his resistance to help by declaring that everything Gardner owns exists solely because Stewart chose not to claim it.
Gardner accepted the unexpected debt.
“Wearing the ring, and having the mantle of Green Lantern, is far more important to Guy’s ego than it is to Hal and John’s,” Fillion explained regarding the character dynamic. The actor noted that Gardner resents owing favors to Stewart when assistance is required.
Earth lore positions Gardner as merely the third choice for the cosmic weapon behind Jordan and Stewart.
“I certainly think there’s a chip on Guy’s shoulder, but I think it’s satiated with the fact that he’s the only guy in the room with the ring,” Fillion observed. He stated that the hero relishes having authority over others.
Viewers first encounter Gardner in the series through an Electro Punch grocery store cardboard advertisement rather than his jail meeting with Stewart.
“Guy is very concerned about brand and corporate sponsorship, he has financial goals,” Fillion stated. He pointed out that the character maintains specific plans to launch a tavern after retiring from hero work. The actor added that Gardner seeks fame across social media platforms like TikTok alongside his heroic duties.
Fillion welcomed the unexpected offer to portray Gardner in Lanterns despite the darker tone of the television project.
“My concern was consistency,” Fillion said about adapting the character across drastically different narrative environments. He compared the tonal shift to an individual maintaining their core personality while spending contrasting weekends in Metropolis or Gotham.
His comic book literacy began during youth and led to voice roles in Justice League Unlimited, Firefly, Deadpool & Wolverine, and Guardians of the Galaxy.
“We collected secondhand comic books in stacks about two feet high, and it was a real mishmash across the board,” Fillion recalled. He acknowledged that he originally disliked Gardner before gaining a deeper appreciation for comic history.
Director James Gunn first cast him as Gardner for the feature film Superman, which debuted in mid-2025.
“Because we haven’t delved into his particular past in any great detail, I’m able to go through his history and cherry pick what I want to pull from to portray the character,” Fillion said. The actor views the character as an abrasive figure driven by a difficult childhood relationship with his father. He stressed that Gardner remains fearless because he constantly attempts to prove his worth.
Fillion specifically referenced a comic book storyline where a vehicular accident placed Gardner into a prolonged coma. “The coma is what flipped that switch for Guy Gardner,” the actor noted regarding the trauma.
Gunn and co-chairman Peter Safran are overseeing the broader DC Universe expansion following the theatrical release of Supergirl.
“Milly Alcock, I think her take on Supergirl is brilliant, I am so pleased with these favorite characters of mine coming to life,” Fillion stated. He affirmed complete creative trust in Gunn across their multiple shared productions.
Their creative partnership dates back to the 2006 film Slither and the 2010 release Super, preceding their upcoming reunion alongside Pierre in the 2027 film Man of Tomorrow.
“Within this secret club of the superhero community, there is yet another layer of secret club, the Green Lantern community,” Fillion explained regarding the upcoming film. He described the ring wielders as an exclusive tier separate from the broader Justice Gang.
The grounded storytelling in Lanterns establishes fresh paths for interconnected narratives across the studio slate.
“Up to this point, we’ve been given the idea, ‘What if we took Batman out of that universe and put him into our world?’” Fillion observed. He contrasted that older approach with Gunn’s strategy of immersing viewers inside an authentic comic book universe populated by giant monsters and robots.
Fillion expressed enthusiasm for moving beyond Metropolis into rural American farm regions before the franchise explores Gotham.
The actor already finished voice recording sessions for Gardner in the upcoming animated production Mister Miracle. Fillion explained that citizens across the fictional setting will frequently encounter Gardner through promotional advertisements.
“It’s really exciting for me, personally, because I think I hold the record for most characters portrayed in the MCU, and now I hold the record for the most projects by a DCU character,” Fillion said.
