Ultraman has been one of the most mysterious characters in James Gunn 's Superman reboot movie. Everyone from Supergirl, to Apollo of the Authority, to even Doomsday has been speculated to be under the mask.

Created by writer Gardner Fox and artist Mike Sekowsky for 1964's Justice League of America #29, "Crisis on Earth-Three," Ultraman was introduced as a Superman figure from an alternate reality, called Earth-Three.

Superman already defeated Lex Luthor in the DCU, but a new theory posits that he's also come face to face with another dangerous villain.

James Gunn isn’t done talking about the Superman . During a recent interview with Rolling Stone , the filmmaker opened up about his plans for the future of the DC Universe, teasing a “kind-of-but-not-really” sequel,

We break down the epic ending to James Gunn's Superman, how it sets up future movies, and why it's a good thing that Gunn isn't necessarily focused on what's next for the DCU.

In Superman(2025), we see that Ultraman is possibly dead, making people think that Superman killed him. Learn if he died or not here.

At this point, Superman and Ultraman duke it out. It’s revealed that he’s a clone of Superman, created by Lex to be the “most powerful being on Earth” and controlled with an expansive, brutal moveset. Of course, Superman wins… but at what cost?

As well as introducing David Corenswet as the new Man of Steel and kickstarting the DC Universe on the big screen, James Gunn’s Superman also introduced a smorgasbord of other popular and underrated DC Comics characters to the rebooted franchise.

Superman (2025) is out and if you have questions regarding the ending of this movie, here it is explained in detail.

Wondering who plays Ultraman in Superman? The powerful villain captivated fans with his impressive powers, eerily similar to those of the titular hero, and his ability to best the latter in their multiple fights.