James Gunn’s Superman may have just dropped one of the biggest DCU’s future casting clues yet. Fans are already buzzing with speculation.Gunn often hides clever references in his films. Once again, he seems to be playing the long game — teasing what may lie ahead for the new DC Universe.
Mural in Superman Offers DCU’s Future Casting Clues
During a key scene in Superman, Lois Lane investigates the Hall of Justice. Keen-eyed fans noticed a mural that appears to depict the Justice Society of America — a subtle but powerful nod to the franchise’s deeper lore.
The buzz only grew when podcaster Neil Vagg, who attended a screening followed by a Q&A with Gunn, revealed that the director confirmed a secret: one face in the mural belongs to a “famous actor.” Gunn didn’t say who — but that hasn’t stopped the internet from speculating.
Could Doctor Fate Be One of DCU’s Future Casting Clues?

The leading theory? Pierce Brosnan as Doctor Fate. He portrayed Kent Nelson in 2022’s Black Adam, a film that belonged to the now-defunct DCEU. Despite the transition to a new universe, fans widely praised Brosnan’s performance — making him a prime candidate for a return.
The possibility gains traction when considering the multiversal themes expected to emerge in Peacemaker Season 2, releasing this August. Doctor Fate is the most likely character to return through clever timeline shifts.
Superman Begins a New Chapter in the DCU
This Superman reboot stars David Corenswet as Clark Kent, Rachel Brosnahan as Lois Lane, and Nicholas Hoult as Lex Luthor. According to Warner Bros., this version of the Man of Steel is “driven by compassion and an inherent belief in the goodness of humankind.”
Blending heart, humor, and heroics, this film kicks off a new narrative era under James Gunn’s vision — and it’s already planting deep seeds for what’s next.
More Clues Coming in the DCU’s Future Projects
Regardless of whether Brosnan returns as Doctor Fate, one thing remains certain: Gunn is carefully laying the groundwork for what’s ahead. Looking forward, upcoming projects like Supergirl, The Authority, Lanterns, and Peacemaker will further expand the DCU’s mythos and storytelling potential.
With subtle nods like the Hall of Justice mural, it’s becoming increasingly clear that DCU’s future casting clues could appear in the most unexpected places. As a result, fans are eagerly piecing together these hidden hints. Ultimately, one thing is certain — the new DCU is being built with both long-term vision and careful planning.
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