We now have our first look at Amber Heard in the role of Mera, who will debut in Justice League before taking on a much bigger role in Aquaman. In the comics she is his wife and queen of Atlantis, gifted with the ability to create "hard water" objects. Chances are she will just be hanging around Atlantis during Justice League and probably won't do much, but you never know. Her inclusion does suggest a key part in future of the DCU, though, and if it means we get to see Heard kick some ass then it's all good.
Justice League opens next year on November 10th, Aquaman on July 27th 2018. [IGN]