Ocean Master (real name Orm Marius) is one of the main antagonists of the Aquaman franchise. He is the half-brother of Arthur Curry/Aquaman and Tula/Aquagirl, the son of Atlanna and Orvax Marius, the brother-in-law of Queen Mera and the paternal uncle of Andy Curry. He believes himself to be the true heir to the throne of Atlantis, despite Arthur being the oldest and plots to usurp the throne from his brother once and for all. Most of his powers are drawn from a trident but he has other means of acts of terrorism, such as advanced technology and other weapons. He has been a member of the Anti-Justice League, the Injustice Gang and the Secret Society of Super-Villains.
Ocean Master was created by Bob Haney and Nick Cardy, first appearing in Aquaman #29 (1966).
