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Quote1 I have returned, dear half-brother! And before this day is done, I shall be a King -- and you shall be dead! Quote2
Ocean Master src

Orm Marius aka Ocean Master is the half-brother of Aquaman and one of his greatest enemies.

Orm is the son of Atlan the wizard (Aquaman's true father) and an Inupiat woman, thus making him Aquaman's half-brother.

This told how one of his early encounters with humans was when he rescued a girl named Kako from a polar bear. Her family were all traditionalists, except her cousin Orm, who had no time for the old ways. When Kako and Arthur began a sexual relationship Orm attacked her in a jealous rage. Although she survived, she did not recall what had happened to her.

Orm appeared in his Ocean Master costume, early in Orin's career as Aquaman and his rule of Atlantis. Ocean Master desires the throne of Atlantis, having learnt his father was an Atlantean wizard. At this time neither he nor Aquaman knew of their relationship, although Aquaman would make the connection while recording the events.

Adopting the identity of human businessman Orm Marius, Ocean Master built a private fleet and attempted to plunder New Marine City, a construction project on the Gotham City waterfront using his half-brother Aquaman, whom he had hypnotized, as muscle. Aquaman was freed from Orm's influence by Batman and driven from Gotham; Aquaman prevented Commissioner Gordon from killing Orm because he desired to bring his brother to justice himself.[2]

Ocean Master later started using mystical powers, and sold his soul to Neron for a powerful trident which gave him great power, but caused agony if released. With this he conquered the Dreaming City, a nation of Atlantean offshoots, before being found by Aquaman, who was seeking to unite all the tribes of Atlantis. Aquaman convinced Ocean Master that they were half-brothers, however the pressure of this caused Orm's mind to snap.

Following this he briefly joined Lex Luthor's Injustice Gang, an "all archenemies" counterpart to the "Big Seven" Justice League. He also attempted to aggravate the tensions between Atlantis and the surface country of Cerdia.

Ocean Master clashed with the JLA again when he attempted to claim the remains of Atlantis following Aquaman's apparent death.

Orm was last seen having used his mystical talents to alter reality so that he was Aquaman and Orin was Ocean Master. As Aquaman, Orm held Sub Diego under his evil rule. However the heroic Ocean Master was able to defeat him.

The Atlantis Chronicles suggests that brothers battling for rulership is a recurring theme in Atlantean history.

Aquaman: Sword of Atlantis

In Aquaman: Sword of Atlantis, Ocean Master has enslaved the Atlanteans who survived the Spectre's destruction of Atlantis, and is using them to mine industrial materials for the surface world.

Infinite Crisis

In Infinite Crisis, Ocean Master became a member of the Secret Society of Super Villains. In Final Crisis, he is placed on the new Society's inner circle by Libra.


  • Magic: Ability to manipulate magical energies. Ocean Master is a master of magical manipulation and can utilise it for many effects including magical bolts and telepathy. After making a deal with the demon Neron, Ocean Master can now manipulate even larger amounts of magical energy.[3][4]




  • Water Breather Helmet: A helmet that allows him to breath underwater.
  • Marine Adaptation: Body armor that protects him from water pressure, along with additional combat padding.


  • Magical Trident: A trident that acts a focus for his magical abilities. Thanks to Neron, it increases Orm's power immeasurably.[3][4]

  • Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.
  • In the continuity of Earth-One where the character first appeared, Orm Curry was the son of lighthouse keeper Tom Curry and his second wife Mary O'Sullivan. This made him Aquaman's fully human half-brother. Orm grew up under the shadow of his heroic half-brother and resented the fact that he had none of his water-breathing powers. Orm was already a petty criminal when he he suffered an accident that left him with amnesia. He no longer knew his familial relationship to Aquaman, but still hated him. In this state he disappeared from his former life.

    Orm resurfaced several years later under a new identity of Orm Marius and had become the criminal known as Ocean Master. He used cutting edge technology to create what appeared to be natural disasters. He attempted to use this technology to hold the world for ransom. This set a pattern of recurring conflict between him and Aquaman. Aquaman, for his part, was torn between fighting Ocean Master and redeeming him once he learned it was Orm under the mask.

    Ocean Master's origins were changed when Crisis on Infinite Earths was used to reboot the DC Universe in 1986. His revised origin was not presented until 1994 where it was recounted in part in Aquaman: Time and Tide #3.



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