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Beyond all that, Flag Sr. and the Justice Gang will go from Superman to appearances in Gunn’s live-action TV series, Peacemaker Season 2. The Green Lantern Corps will get a deeper look via HBO’s Lanterns live-action series, and the Superman family spinoff Supergirl: Woman of Tomorrow will be headed to theaters next. That’s already more than a dozen superpowered characters the DCU will have in play, as well as supporting characters that come with each property. You would also have to figure that Superman 2 would need to introduce additional new characters to the franchise, making the potential combinations endless.
When ComicBook.com sat down and talked to the cast of Superman (2025), they had more than a couple of suggestions as to who they would like to see in the sequel, and there was a pretty clear consensus:
“Batman,” Lois Lane actress Rachel Brosnahan revealed. “Low-hanging fruit, I know.”
The Superman Cast Is Ready For the DCU Batman Universe

Rachel Brosnahan didn’t mince words about which character she wants for the Superman sequel, while acknowledging that it’s the more obvious choice. It’s also likely to be one of the more triggering answers: Zack Snyder’s DC Extended Universe infamously launched the franchise with a Superman reboot (Man of Steel) before refashioning the sequel into a crossover with Batman (Batman v Superman: Dawn of Justice). That all said, the new DCU still has a massive Batman issue to overcome: there needs to be a new Batman to stand alongside David Corenswet’s Superman, while director Matt Reeves and Robert Pattinson still have The Batman: Part II in the pipeline, continuing that standalone franchise.
The difference with Gunn’s DCU is clear, though; Corenswet and Lex Luthor actor Nicholas Hoult revealed that they both want to embrace the deeper lore and character roster of the DCU, and actually wanted to see crossovers between other Batman Universe characters in a sequel.
“I think Batman has got to be my answer, but it just occurred to me that one of the Robins – one of the iterations of Robin – would be interesting, because I think Superman has good dad energy,” Corenswet said. “And although it’s been explored – his relationship with his sons in certain iterations – I feel like it would be interesting to have him as sort of an uncle figure to Batman’s younger protege.”









