Justice League: Willem Dafoe Rumoured for Underwater Role
Willem Dafoe's casting in Justice League came with little detail toward what kind of role he'd be playing, other than the fact that he'd be a "good guy."
A new rumour has cropped up that he'll be playing an Atlantean, which means obvious ties to Jason Momoa's Aquaman. No word has come forward on exactly who the character is though.
There aren't many notable Atlantean's in heroic or civil roles in the DC universe beyond Aquaman. Most likely.he'll be either a foot soldier or political advisor of sorts to Arthur Curry (Aquaman).
The Atlantean mythology is rich, so there's also plenty of room to expand outwards from the comic. With Aquaman's queen having been cast, it's starting to sound like Atlantis has a big role to play in the upcoming film, which is exciting to hear given the stigma on the character for so long.
The rumour extends to say that the underwater scenes with Aquaman will be shot with green screens and elaborate rigs rather than a water tank. Use of green screen will be prominent in Justice League, with plans from Snyder to use it in a similar capacity as he did on 300.
Justice League is set for a November 17, 2017 release.
Source: Comicbook