James Gunn's upcoming take on Superman is set to introduce a fresh face to the DC Cinematic Universe: Nathan Fillion as Green Lantern, specifically the character Guy Gardner. In a recent interview with TV Guide, Fillion shared insights into his unique portrayal of Gardner, emphasizing a departure from previous iterations of the character on both film and television.

"He's a jerk!" Fillion exclaimed, highlighting that being a Green Lantern doesn't require goodness, just fearlessness. "So 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 touched on 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 noted. "He can't!"

This new Superman film marks the first entry in the rebooted DC Cinematic Universe, kicking off the chapter titled "Gods and Monsters." Beyond the big screen, HBO is also delving into the Green Lantern universe with a series called "Lanterns," set to explore other members of the superhero alliance. Kyle Chandler will portray Hal Jordan, and Aaron Pierre will play John Stewart, with the series slated for a 2026 premiere.

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 scheduled to hit theaters on July 11, 2025.