Aquaman director James Wan has cast Watchmen actor Patrick Wilson as Orm, the evil half brother of Aquaman who becomes the villain Ocean Master. Wilson has worked with Wan before on Insidious and the Conjuring franchise.
Fun fact: Wilson also voiced the President in Batman v Superman: Dawn of Justice.
Shortly after this news broke, James Wan took to Twitter to comment on it:
— James Wan (@creepypuppet) December 13, 2016
Earlier this year it was rumored that Black Manta would be the villain in Aquaman, but right now it looks like just Ocean Master is confirmed.
Aquaman hits theaters on October 5, 2018 and is expected to start shooting in Australia early next year.