Nathan Fillion has offered fresh insight into Guy Gardner’s transformation from intergalactic peacekeeper to corporate-sponsored celebrity—and teased how Man of Tomorrow will take a different path from Superman.

Fillion’s bowl-cut Green Lantern first entered the new DC Universe as a member of the Justice Gang in Superman. He later appeared in Peacemaker before making the jump to HBO’s darker, detective-driven Lanterns.

Despite the dramatic differences between those projects, Fillion believes the character can remain consistent while adapting to each story’s atmosphere.

He compared the experience to spending one weekend in colourful Metropolis and another in shadowy Gotham. The individual would remain the same, he explained, but the two weekends would feel entirely different.

Guy Gardner turns superhero status into a business

In Lanterns, Guy is not merely a superhero. He has become a carefully packaged product supported by LordTech and its billionaire founder, Maxwell Lord.

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The series drives that point home when John Stewart returns to Rushville and spots a promotional display featuring Guy advertising an energy drink. It is an image that immediately separates him from fellow Green Lanterns Hal Jordan and John Stewart.

Hal is too unpredictable to become a polished spokesman, while John treats the responsibilities of the ring far too seriously to turn himself into a corporate mascot. Guy, however, appears perfectly comfortable mixing heroism with advertising.

Fillion said Guy enjoys being recognised as someone special and believes marketing naturally accompanies that position. His financial ambitions also play a role: Guy dreams of opening his own bar, and achieving that goal requires money.

“For that, you need corporate sponsorship,” Fillion explained.

In other words, Guy does not see commercial partnerships as compromising his heroic identity. He considers branding another tool—one that can build his public profile while funding the future he wants.

Fillion described him as someone who understands both the superhero business and the actual business surrounding superheroes.

Rushville remains haunted by Hal and John’s decisions

Guy’s polished public image exists in stark contrast to the painful history surrounding the Green Lantern name.

A decade earlier, Hal Jordan and John Stewart became caught in the devastating Battle of Rushville.

Hal, played by Kyle Chandler, was desperate to prevent his younger partner from replacing him. His decisions helped bring an extraterrestrial confrontation directly into Rushville, placing both John and the town’s population in danger.

A disillusioned John, portrayed by Aaron Pierre, eventually took Hal’s ring before abandoning the very object he had spent years trying to earn. The destruction left Rushville’s residents deeply suspicious of Green Lanterns and permanently damaged the organisation’s public image.

When the Guardians selected Guy as Earth’s next Green Lantern, he inherited more than a powerful ring. He also inherited a reputation in need of repair.

That is where LordTech’s public-relations machine apparently became useful.

Was Guy’s Green Lantern beacon really an apology?

In Episode 6, titled “Bad Optics,” Guy installs a Green Lantern beacon in Rushville resembling Gotham’s famous Bat-Signal.

The symbol is presented as an attempt to rebuild trust following the destruction caused by his predecessors. Fillion believes Guy genuinely wanted the beacon, but he suspects the decision was also influenced by LordTech’s damage-control specialists.

The actor described it as the likely product of a team working to improve the Green Lantern brand rather than a purely personal act of compassion.

John eventually uses the beacon to summon Guy and asks him to obtain Hal’s decommissioned ring from the Guardians of the Universe. He believes the ring could help him investigate Hal’s death.

Guy initially resists, but John reminds him of an uncomfortable truth: Guy only received his current position because John rejected it ten years earlier.

According to Fillion, John deliberately pulls on that thread to secure Guy’s cooperation. By helping him retrieve the ring, Guy can consider the old debt repaid.

The relationship between the two men is therefore built on pride rather than friendship. They understand one another and share the rare experience of being selected by the Corps, but they do not truly regard themselves as colleagues.

‘Man of Tomorrow’ will explore Lex Luthor more deeply

Fillion will return as Guy Gardner in Man of Tomorrow, the 2027 follow-up to James Gunn’s Superman.

The actor stopped short of revealing specific plot details but explained the most important difference between the two films.

While Superman allowed audiences to understand who Clark Kent truly is, Fillion believes Man of Tomorrow will reveal considerably more about Lex Luthor.

“In this movie, I think we’ll learn more about who Lex Luthor is,” he said, adding that such an exploration is equally important.

The new film brings back David Corenswet as Superman and Nicholas Hoult as Lex Luthor. Rachel Brosnahan will also return as Lois Lane, alongside Fillion, Isabela Merced and Edi Gathegi.

The story is expected to place Superman and Luthor in an uneasy alliance against the highly intelligent alien threat Brainiac, played by Lars Eidinger. The film is scheduled to arrive in theatres on July 9, 2027.

Nathan Fillion and James Gunn’s trusted partnership continues

Fillion’s journey through the DCU is the latest chapter in his long creative relationship with writer-director James Gunn.

Their collaboration began with Slither in 2006 and has since expanded across approximately a dozen projects.

Fillion said Gunn remains fundamentally the same person he first worked with, despite the enormous expansion in the size and scope of his productions. He praised the filmmaker’s love of storytelling, ability to think on several creative levels and enthusiasm for his work.

That trust may explain why Guy Gardner has quietly become one of the connective figures holding Gunn’s developing DC Universe together.

He is arrogant, commercially ambitious and frequently difficult—but he is also fearless enough to wear the ring. In Fillion’s hands, those contradictions make Guy far more interesting than a conventional hero trying to do everything for the right reasons.