'Zack Snyder's Justice League' teases a big DC superhero who was cut from the 2017 movie

• Warning: Spoilers ahead for HBO Max's "Zack Snyder's Justice League."
• There's several cameos in the film, featuring characters that were cut from 2017's "Justice League."
• Those scenes have now been restored in the "Snyder Cut," and it looks like Atom is being teased.

"Zack Snyder's Justice League" teases a prominent superhero who was cut from the 2017 theatrical release of the movie.

The "Snyder Cut," which runs over four hours long, features a plethora of unseen footage that was left on the cutting room floor in 2017. It also features Martian Manhunter in the movie, a cameo that surprised and delighted fans.

However, the film, out on HBO Max now, also features another surprise superhero - one that was originally supposed to be in "Justice League," but ended up being cut from the movie.

In the "Snyder Cut," we see Kai Zheng as Star Labs scientist and researcher Ryan Choi. In most of his scenes, we see Choi as a foil to Silas Stone, who is the scientist father of Cyborg.

Although the scenes were cut by director Joss Whedon, who took over the ill-fated film after Snyder's daughter died by suicide, Snyder restored these scenes in his version of the film.

And there could be a particular reason for adding Choi into the "Snyder Cut." In his final scene of the lengthy film, Choi reveals that his specialty in scientific research is actually nanotechnology.

This will be a significant reveal for comic book fans because in the DC comics, Choi is actually one of several characters who takes on the mantle of the famous superhero The Atom. Atom's super powers include the power to shrink down to the size of an atom, hence the relevance of the nanotechnology reveal.

In the comics, Choi is the protege to Ray Palmer, who actually appeared in the TV show "Arrow," played by ex-Superman actor Brandon Routh.

This potential reveal of an eighth superhero suggests that Choi could be seen in future sequels.

While there has been no official word on whether or not there will be any "Snyder Cut" sequels, the film does end on a cliffhanger, involving Martian Manhunter. Henry Mannix, who plays the character, told Insider that he doesn't think "Zack Snyder's Justice League" is the "end of the story."

We could, therefore, see Choi become Atom in any potential future sequels, and some fans would love to see more.

"Zack Snyder's Justice League," also starring Henry Cavill and Gal Gadot, is streaming on HBO Max now.