CinemaBlend Copy to clipboard Before he joined the DC Extended Universe to play Aquaman, among the things Jason Momoa was well-known for was playing Khal Drago in Game of Thrones Season 1 and briefly in Season 2. Well, heâll soon be joined by another alum of the hit HBO series, as itâs been announced that Pilou Asbaek is delving into the Game of Thrones, is currently in negotiations to join Aquaman 2. Deadline did not provide any details about his role, but assuming a deal is finalized, he would be the first new face to be added to the DCEU sequel. Along with Jason Momoa obviously reprising the title hero, a.k.a. Arthur Curry, Amber Heard and Yahya Abdul-Mateen II are confirmed to return as Mera and Black Manta, respectively.