Patrick Wilson, best known for playing Ed Warren in James Wan’s The Conjuring movies and Nite Owl in Zack Snyder’s Watchmen, will reteam with director James Wan for the Jason Momoa Aquaman movie. Wilson will be playing the villain, Orm Marius aka Ocean Master, who is the half-brother to Momoa’s Aquaman.
While early reports pegged Black Manta as the seafarer’s film foe, it looks like Ocean Master, a rival for the throne of Atlantis and capable of wreaking huge chaos across the city and the ocean in general, will be the main villain. This character is mostly comparable to that of Thor’s brother, Loki, in the Marvel Cinematic Universe.
— James Wan (@creepypuppet) December 13, 2016
Aquaman has an October 5, 2018 release directed by James Wan starring Jason Momoa as Aquaman, Amber Heard as Mera, and Willem Dafoe as Nuidis Vulko.