James Gunn’s DCU Just Added a Mystery Star — Who Will They Play Alongside the Man of Tomorrow?

Alright, DC fans, set your speculation engines to overdrive. 'Man of Tomorrow,' the next big DC movie from James Gunn, just added another name to its steadily growing cast — and, as usual, no one’s bothered to actually say who he’s playing. So let’s talk through the details, what we do know, and of course, what everyone’s guessing.

Who’s In, Who’s Back, and What’s Up This Time?

To set the scene: 'Man of Tomorrow' is officially filming, with James Gunn pulling double duty as writer and director. This one is a direct follow-up to 2025’s 'Superman', so yes, David Corenswet will again don the cape as Clark Kent, while Nicholas Hoult returns to bald it up as Lex Luthor.

Andre Royo Joins the Party

The latest addition: Andre Royo. If his name rings a bell, it’s because he’s best known for playing Bubbles on 'The Wire' (if you’ve seen it, you know — and if you haven’t, well, fix that). He’s also not new to the James Gunn universe, having appeared in Gunn’s 2010 film 'Super' as a guy named Hamilton.

But here’s the thing: Nobody has any idea who Royo is playing. Seriously, nothing’s been confirmed, but that hasn’t stopped wild theories from bouncing around online. (Because of course not.)

The Top Four Fan Theories

Since no official info has dropped, here are the four leading guesses — ranging from very plausible to 'sure, why not?'

• Martian Manhunter
  The boldest prediction. Fans have been predicting J'onn J'onzz’s debut in the DCU for a while, and with Gunn teasing the character’s favorite cookies (Chocos! Yes, they are canon) on set, it’s not completely out of left field. Royo as Martian Manhunter would be a flashy move, no question.
• Silas Stone
  A more understated option. Silas is Cyborg’s dad (that’s Victor Stone, in case you missed that homework), plus the brains behind Titans Tower. If DC is angling for a proper Teen Titans setup, Silas Stone showing up now makes a lot of sense. And let's be honest, they probably won’t use a megastar for MM, so Silas feels like a realistic bet.
• Professor Emil Hamilton
  No Superman story is complete without a wild-card scientist. Sometimes Emil Hamilton helps Superman, sometimes he’s a threat, and he gets heavily involved when Brainiac shows up (which everyone expects to happen in this movie). If they’re going for classic Superman lore, Hamilton is an easy choice.
• A Random Henchman
  It wouldn’t be the first time fans hyped up a new DC casting, only for it to turn out decidedly unexciting. Remember how Terence Rosemore was teased for 'Superman' and then just ended up as Lex Luthor’s assistant? We could get a repeat here: maybe Royo is just playing 'Brainiac’s Guy #2' and wanted to hang out on set with Gunn again for old times’ sake. Sometimes simple is the answer.

So, What’s Next?

No matter who Andre Royo plays, one thing’s obvious — he’s got the acting chops to make even a small role memorable (Bubbles forever!). Until Gunn or DC drop some real info, though, it’s all just educated guessing. As for when we’ll actually find out? Your guess is as good as mine.

'It’ll be fun to see him show up in the movie, whoever he might be playing.'

Bottom line — keep an eye out. This could be a major character, a setup for bigger things, or just a fun cameo. With Gunn at the helm, who knows which way it’ll go?