James Gunn Hints at Massive Cameo in Peacemaker Season 2 Finale

DC Studios co-CEO James Gunn has hinted at a potentially major cameo appearing toward the end of *Peacemaker* Season 2, though he stopped short of confirming whether it’s tied directly to the upcoming *Superman* movie or another entry in the newly rebooted DC Universe (DCU).

The *Superman* film, set for release this summer, takes place before the events of *Peacemaker* Season 2, which is scheduled to debut on HBO Max—yes, the streaming service has reverted to that name—on August 21, 2025. Following that, *Supergirl: Woman of Tomorrow* arrives in theaters on June 26, 2026, while the *Lanterns* TV series currently remains without an official premiere date. Both *Supergirl* and *Lanterns* are set after *Superman* and *Peacemaker* Season 2 within the shared DCU continuity.

Earlier this month, Max released a new trailer for *Peacemaker* Season 2, showing supporting characters from the *Superman* universe—Maxwell Lord, Hawkgirl, and Guy Gardner—interviewing Peacemaker for possible recruitment into their team. Predictably, things don’t go well for him.

In a recent interview with Entertainment Weekly, Gunn emphasized how *Peacemaker* Season 2 is “very much connected to *Superman* and very much connected to what comes after,” teasing even more interwoven storylines beyond that.

“You've seen what we call the QUC—the Quantum Unfolding Chamber—in the first season of *Peacemaker*, and we see more about that technology in *Superman*,” Gunn explained. “The QUC is central to the story in *Peacemaker* Season 2. We’ll encounter several characters from *Superman* in the season, including Isabela, Nathan, and Sean. Later on, you’ll also see other characters from different corners of the DCU and the *Superman* world. There might even be one really big cameo near the end.”

Gunn also confirmed that *Peacemaker* Season 2 takes place a few years after the conclusion of Season 1. However, the broader DCU timeline remains intentionally flexible. “After all my time at Marvel, I know just how hard it is to make everything fit together perfectly, so we’re keeping it vague—just a couple of years,” he said.

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As has become increasingly clear over recent months, multiple characters will appear across *Superman*, *Peacemaker* Season 2, *Supergirl*, and *Lanterns*. This could get a bit confusing, prompting fans to wonder whether the DCU will adopt a chronological timeline similar to the one Disney+ offers for the MCU.

This question was recently posed to Gunn on social media, where he responded that the DCU timeline will follow the order of release for now.

“As of now, it's basically as the movies and shows come out—although, of course, some include flashbacks—like *Creature Commandos*, *Superman*, *Peacemaker*, *Lanterns*, and *Supergirl*,” Gunn clarified.

Disney+ features a curated section that organizes Marvel films and series chronologically, offering viewers a seamless way to experience the canon. While Gunn’s comments suggest HBO Max won’t offer such a feature at launch, it’s possible something similar may arrive once the DCU library expands significantly.

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Other upcoming DCU projects currently in development include *Clayface*, which is slated for a September 11, 2026 theatrical release. Meanwhile, *The Authority* appears to be facing production challenges. Gunn noted that the *Peacemaker* spinoff *Waller* "has had a couple of setbacks, frankly." However, the HBO Max series *Booster Gold* is reportedly "going pretty strong," and *Paradise Lost* remains "totally important and we're working heavily on it."

As for cross-project character integration, fans are especially curious about how the *Superman* movie will handle its ensemble cast. The latest trailer introduced a wide range of figures—from Mister Terrific to The Engineer, along with the new character The Hammer of Boravia and the enigmatic Ultraman—hinting at a richly layered narrative ahead.