James Gunn reveals which Guardians of the Galaxy stars cameo in Superman—see who’s joining the DCU!

Director James Gunn reveals Guardians of the Galaxy cameos in Superman as he confirms which of his longtime collaborators and friends will appear in the highly anticipated DCU film, set to release in July 2025. Many fans have speculated about crossovers, and Gunn recently clarified exactly which familiar Marvel actors are making the leap in voice roles for Superman.

James Gunn Confirms Guardians Cast Joining His Superman Movie

Over the years, James Gunn has developed a reputation for featuring his close friends and frequent collaborators in his projects, especially in both the Marvel Cinematic Universe and now the DCU. In the upcoming Superman movie, the principal cast features David Corenswet as Superman, with Nicholas Hoult, Rachel Brosnahan, Skyler Gisondo, Sara Sampaio, Edi Gathegi, Isabela Merced, Anthony Carrigan, and Nathan Fillion set in major roles.

Rumors and speculation about cameo appearances by Guardians of the Galaxy stars have grown since filming began. In a recent conversation with Buzzfeed, Gunn directly addressed the rumors, saying:

“I will give you something that nobody knows, but Pom Klementieff is one of the robots. It’s Bradley [Cooper] and then it’s also Pom and Michael Rooker is another one of the robots.”

—James Gunn, Director

He further elaborated when asked about Dave Bautista and Zoe Saldana, noting he was keeping them “in the wings,” leaving the door open for potential future appearances from these actors.

The Impact of These Cameos on the Superman Universe

Gunn’s confirmation finally settles fan debates over how strongly his previous work in Marvel’s Guardians of the Galaxy will intersect with his Superman film. In a response to a fan, Gunn provided additional insight into his intentions:

James Gunn
Image of: James Gunn

“I didn’t place any Guardians Easter eggs… but I may have placed a few Guardians who are Easter eggs. If that makes sense.”

—James Gunn, Director

This statement underlines that while direct reference to the Marvel world will not appear, familiar faces—voicing robots who serve as Superman’s helpers in the Fortress of Solitude—will definitely surface. This approach maintains narrative separation while delighting fans attuned to his signature casting choices. The trend began when Alan Tudyk was confirmed as one of the robot voices, fueling expectations that other favorite actors would join in vocal cameos.

The first teaser for James Gunn’s Superman showcases Nicholas Hoult stepping into the role of Lex Luthor, establishing a new iteration of the iconic rivalry with David Corenswet’s Superman. While speculation about certain actors playing significant DC roles remains, these confirmed cameos focus on giving loyal fans a recognizable treat rather than rewriting the larger DCU narrative.

What This Means for Gunn’s Collaborators and the Film’s Future

There had been reports suggesting Bradley Cooper might portray Jor-El, Superman’s birth father—a role with much greater weight. However, his confirmed role as a helper robot indicates that, for now, Gunn is favoring smaller, inside nods, connecting his two superhero franchises by voice rather than physical presence. These parts, though limited to speaking roles, keep the door wide open for all these actors to take up more substantial characters in the future DCU stories.

For major stars like Dave Bautista and especially Zoe Saldana (whose booking potential has only increased after her Academy Award win), Gunn’s comment about keeping them available for future options signals that more crossover opportunities could emerge as his new Superman saga develops. Gunn’s habit of sprinkling in cameos from his creative circle maintains continuity across his work, offering enjoyment to fans who appreciate the blend of Marvel legacy within the DCU context.

The confirmed inclusion of Pom Klementieff, Bradley Cooper, and Michael Rooker adds another layer of connection between James Gunn’s Marvel history and his current plans for the DC franchise. As new characters like Michael Holt (Edi Gathegi), Lois Lane (Rachel Brosnahan), and Lex Luthor (Nicholas Hoult) take the stage alongside David Corenswet’s Superman, audiences can expect a cinematic experience rich with subtle references and collaborative spirit, rooted in Gunn’s career-long alliances.

Set for release on July 11, 2025, Superman looks poised to reinvigorate the DCU with fresh faces, intricate references, and the unmistakable influence of James Gunn, who continues to shape comic book adaptations for a global audience. Fans should watch closely to spot these carefully placed cameos, as the film promises both comic book spectacle and familiar voices woven seamlessly into its world.