October 8, 2025

Man of Tomorrow: James Gunn Hints at Brainiac Yet Holds Back on Main Villain Confirmation!

By Patrick Webb Sep 30, 2025

James Gunn Addresses Brainiac Speculation in Man of Tomorrow

James Gunn has fueled fan theories about Brainiac’s potential appearance in Superman: Man of Tomorrow after sharing a script cover featuring a detailed brain diagram. However, the director deliberately avoided confirming whether Brainiac, the iconic Superman villain, would play a central role.

When asked by Entertainment Weekly about Brainiac rumors, Gunn stated:

“Listen, of course, I wasn’t unaware that when I posted the cover of the script, there was going to be discussion around that particular topic.”

“But I think we’ll hold off on what exactly is happening.”

Fans quickly connected the brain diagram to Brainiac, recognizing him as Superman’s second most famous villain after Lex Luthor. As a result, this has ignited widespread discussion across social media platforms, and many fans are eagerly anticipating the villain’s potential debut in the DC Universe. Moreover, the speculation continues to grow with each new hint from James Gunn.

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Supporting Clues Hinting at Brainiac’s Possible Role

Several pieces of evidence have strengthened speculation around the villain:

  • Gunn previously mentioned on the Peacemaker podcast that Chukwudi Iwuji’s character, Murn, hasn’t been canonized in the DCU. This could leave Iwuji available to portray a non-human villain such as Brainiac.
  • The iconic status of Brainiac in Superman lore naturally makes him a prime candidate for major storylines following the 2025 film.

Additionally, Gunn has teased that Man of Tomorrow will explore unexpected alliances. David Corenswet returns as Superman, Rachel Brosnahan returns as Lois Lane, and Nicholas Hoult reprises his role as Lex Luthor. Interestingly, Gunn confirmed that the film will explore Superman and Luthor working together against a “much bigger threat,” hinting at a storyline that could involve Brainiac.

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Returning Cast and Exciting Rumors

Beyond potential Brainiac involvement, fans have several other exciting updates:

  • Jason Momoa may appear as Lobo, offering a mix of chaos and humor in the DCU.
  • Milly Alcock is rumored to make her debut as Supergirl, adding fresh dynamics to Superman’s world.

The first Superman film (2025) earned over $600 million worldwide and holds an 83% Rotten Tomatoes score, setting high expectations for Man of Tomorrow, scheduled for release on July 9, 2027.

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Why Brainiac Would Be a Game-Changer for the DC Universe

Introducing the villain could expand the DCU’s cosmic storytelling, challenging Superman both intellectually and physically. Unlike traditional threats, the antagonist’s strategic mind and technological prowess could force Superman and Luthor to collaborate in ways previously unseen. This aligns with Gunn’s hints that the film will focus on “a much bigger threat” than Luthor alone.

James Gunn skillfully teases a potential role in Man of Tomorrow but keeps fans guessing about the villain’s involvement. With returning stars and rumored appearances of Lobo and Supergirl, the film promises a high-stakes alliance between Superman and Luthor. The upcoming movie is shaping up to be a major event in the DC Universe.

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