This DC superhero is confirmed to appear in 3 upcoming shows and movies — including 'Superman' and 'Peacemaker'

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It's not who you'd expect

Promotional image from James Gunn's Superman (2025) which shows Superman and Krypto the dog viewing Earth from the moon.
(Image credit: Warner Bros. Discovery)

With the reveal of the "Peacemaker" season 2 trailer, we got more than just a release date for the Max superhero show — we got a third confirmed casting of Nathan Fillion as Guy Gardner.

Yes, you're reading that right. It's not the Man of Steel that's seemingly on every DC show or movie call sheet. Heck, he's not even the best Green Lantern (that would be John Stewart).

'Superman' (July 11)

Superman | Official Teaser Trailer - YouTube Superman | Official Teaser Trailer - YouTube
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We don't get much of Fillion's Guy Gardner in the first "Superman" trailer. At the 1:43 mark, we get a shot of his blonde bowl cut and him blasting his Green Lantern ring, and that's it.

But Fillion himself has shed a bit more light on Gardner's role in the upcoming Man of Steel movie. "He's a jerk!" Fillion told TV Guide back in March. "I think if he has a superpower, it might be his overconfidence, in that he thinks he could take on Superman. He can't!"

That wasn't all he had to say about Gardner, either. "What's important to know is, you don't have to be good to be a Green Lantern; you just have to be fearless." Fillion explained. "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."

'Peacemaker' season 2 (Aug. 21)

Peacemaker Season 2 | Official Teaser | Max - YouTube Peacemaker Season 2 | Official Teaser | Max - YouTube
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We get a look at Fillion as Gardner almost immediately in the "Peacemaker" season 2 trailer.

The trailer kicks off with Chris Smith, aka Peacemaker (John Cena), interviewing for the Justice Gang. In the room interviewing him are Maxwell Lord (Sean Gunn), Kendra Saunders, aka Hawkgirl (Isabela Merced) and Gardner.

The interview doesn't go well, with Peacemaker not getting the gig. But we do get of Gardner being a jerk, and we'll get to see more when the season 2 premiere arrives on Max on August 21 at 9 p.m. ET.

'Lanterns' (early 2026)

Aaron Pierre and Kyle Chandler in "Lanterns."

(Image credit: John P. Johnson/HBO)

"Lanterns" is an upcoming HBO show centered around two Green Lanterns: Hal Jordan (Kyle Chandler) and John Stewart (Aaron Pierre).

In this show, Stewart is a new recruit to the Lantern Corps, who is partnered up with Jordan to investigate a murder in the American heartland. It's being billed as a dark, Earth-based mystery show with consequences for the greater DC universe.

While we don't know exactly what role Fillion's Gardner will play in "Lanterns," he confirmed to Entertainment Weekly that he'll be in the upcoming HBO show.

Malcolm McMillan
Malcolm McMillan

Malcolm has been with Tom's Guide since 2022, and has been covering the latest in streaming shows and movies since 2023. He's not one to shy away from a hot take, including that "John Wick" is one of the four greatest films ever made.

Here's what he's been watching lately:

Malcolm McMillan
Malcolm McMillan
Streaming Editor

Malcolm has been with Tom's Guide since 2022, and has been covering the latest in streaming shows and movies since 2023. He's not one to shy away from a hot take, including that "John Wick" is one of the four greatest films ever made.

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