Murk was created by Geoff Johns and Paul Pelletier. He made his first appearance in Aquaman #17, the epilogue to the Throne of Atlantis.
Major Story Arcs
Throne of Atlantis Aftermath
In the events of Throne of Atlantis, Murk was the leader of a frontline army in the attack on the surface world. He is only seen in cameo on most splash pages of the Atlantean army. After the war, Aquaman regained the position as king of Atlantis. During one of their underwater missions, Murk accompanied Arthur and a group of Atlanteans to stop Captain Moller from illegal whaling and the use of Atlantean weaponry. Murk was ready to kill one of Moller's crew but Aquaman demanded him to stop. The Sea Devils then boarded the ship and confront Aquaman. However, Dane Dorrance gets too close to Aquaman provoking Murk into taking action by shooting him. Aquaman then yelled at Murk for what he had done. Murk then goes on to tell Arthur that he has protected the nation of Atlantis and defended King Orm against the Fire-Trolls and Deep Six, but if given orders, he'll refrain from protecting Arthur.
In Aquaman #18, Murk informs Aquaman that they left the humans "relatively" unharmed, even though blood was shed. Having only visited the surface world couple times, Murk is still skeptical and thinks that they are only dangerous to each other rather than Atlantis. However, Aquaman explains to Murk that not all humans are like the ones he has encountered so far and that there is a good side to humanity. Later, Tula meets up with Murk, who told her to ask Arthur about what's going to happen to Orm, and tells him that Arthur assures her that the surface world will not harm Orm. However, Murk is hesitant to accept Arthur's reassurance, and informs to Tula that Orm is always going to be his king and they cannot trust Arthur. He goes on to tell her that the Atlantean laws were written before the surface-dwellers were considered a dangerous threat to them and that it's only a matter of time before the violence they inflict on themselves will somehow find it's way to Atlantis. Murk eventually tells Tula that the only way to save Orm is to go up to the surface world and rescue him themselves.With the aid from Tula and Swatt, Murk rises out of the water onto the surface world to rescue Orm from imprisonment at Belle Reve prison.
Powers & Abilities
Murk is an Atlantean and possesses their typical superhuman abilities
Murk has shown he is strong enough to casually lift an entire steel cargo container filled with weaponry. He also ripped a door from a car by accident while trying to open it.
He can function normally underwater and is able to withstand the high pressures and extreme temperatures of the deep.
Murk is a trained Atlantean warrior. He trained in the Fire Pits (and survived) in order to be able to protect Atlantis. He can also operate Atlantrean high tech weapons.
He is the leader of the Men-of-War, the front line army of Atlantis.
Weaponry & Equipment
He wears the typical Men-of-War armor which consists of some protective pieces, a helmet and a harpoon-like extension on his arm. It's designed for melee combat.