Amber Heard is coming to 'Justice League: Part One' and 'Aquaman' as Mera
Heard discussed her costume with Entertainment Tonight: "It's interesting. It's like, half suit of armor, half scales ... We're in the process of building it now, so it's coming along." Mera is the queen of Atlantis, so, you know, the costume had better be fantastic.
She'll first appear in Justice League: Part One in 2017 before moving onto the Aquaman standalone film scheduled for release in 2018. Aquaman is, of course, being played by Jason Momoa.