James Gunn's upcoming Superman film introduces a fresh take on the iconic superhero, and with it, Nathan Fillion steps into the role of Green Lantern's Guy Gardner. In a recent interview with TV Guide, Fillion shed light on his unique portrayal of the character, emphasizing that his version of Gardner will be notably different from previous iterations. "He's a jerk!" Fillion stated, explaining that being a Green Lantern doesn't require goodness, just fearlessness. "Guy Gardner is fearless, and he is not very good. He's not nice, which is very freeing as an actor because you just think to yourself, what is the most selfish, self-serving thing I can do in this moment? And that's the answer. That's what you do in that moment."

Fillion also highlighted Gardner's hubris, suggesting that his character's overconfidence might be considered a superpower. "I think if he has a superpower, it might be his overconfidence, in that he thinks he could take on Superman," Fillion remarked. "He can't!"

This new Superman film marks the first entry in the rebooted DC Cinematic Universe, kicking off the inaugural chapter titled "Gods and Monsters." Alongside Superman, the DC universe is expanding with HBO's series "Lanterns," which will explore other members of the Green Lantern Corps. Set to premiere in 2026, the series stars Kyle Chandler as Hal Jordan and Aaron Pierre as John Stewart.

The cast of Superman includes David Corenswet as Clark Kent, Rachel Brosnahan as Lois Lane, Milly Alcock as Supergirl, and Nicholas Hoult as Lex Luthor. Written and directed by James Gunn, the film is slated for release on July 11, 2025.