who are the enemies of the fourth character?
Ocean Master, Black Manta, the Fisherman, the Scavenger, and the terrorist organization known as O.G.R.E..
Aquaman
The 1960s series introduced other such archenemies as the Ocean Master (Aquaman's amnesiac half-brother Orm), Black Manta, the Fisherman, the Scavenger, and the terrorist organization known as O.G.R.E.. 
what are the characters in the justice league movie Batman,  Wonder Woman, The Flash, Aquaman, and Cyborg. what is the first character like? He wore a cowl instead of a simple domino mask, a cape instead of wings, and gloves. The red sections from the original costume were removed. does he have any special skillset? He has no inherent superhuman powers; he relies on "his own scientific knowledge, detective skills, and athletic prowess". His inexhaustible wealth gives him access to advanced technologies, and as a proficient scientist, he is able to use and modify these technologies to his advantage. which technology is used by him? He utilizes a vast arsenal of specialized, high-tech vehicles and gadgets in his war against crime, the designs of which usually share a bat motif. The batsuit aids in his combat against enemies, having the properties of both Kevlar and Nomex. It protects him from gunfire and other significant impacts. His gloves typically feature three scallops that protrude from long, gauntlet-like cuffs, although in his earliest appearances he wore short, plain gloves without the scallops. what is the other name of the second character mentioned above? Diana Prince
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Aquaman [SEP] Allies and foes
By this time Aquaman had met Mera, a queen from a water-based dimension, and married her shortly after he became king. They soon have a son, Arthur, Jr. (nicknamed "Aquababy"). The 1960s series introduced other such archenemies as the Ocean Master (Aquaman's amnesiac half-brother Orm), Black Manta, the Fisherman, the Scavenger, and the terrorist organization known as O.G.R.E.. Other recurring members of the Aquaman cast introduced in this series include the well-meaning but annoying Quisp (a water sprite); Dr. Vulko, a trustworthy Atlantean scientist who became Aquaman's royal adviser and whom Aquaman eventually appoints to be king after leaving the throne himself; and Tula (known as "Aquagirl"), an Atlantean princess who was Aqualad's primary love interest.