Aquaman can be described as bold and calm headed. As King of the Earth's oceans, he behaves in a very regal and formal manner, especially in his own home. However, he seems to have his soft spots, and he allows disagreement with his command to some degree, if it carries wisdom.
Aquaman seems to respect the abilities of his protégé Aqualad, and even the abilities of his teammates. However, he can at times behave patronizing towards them, though not in an intentionally rude manner. Like many of his Justice League colleagues, Aquaman takes the view that the younger generation is not ready to join the League just yet. After the Team defeated Blockbuster, he changed his mind.
Aquaman resembles a bearded Caucasian male, with short blond hair, a beard, aqua blue eyes and a strong build. As Aquaman, he wears an orange scale-mail tunic and dark green leggings. At his waist is a gold belt that is clasped with a stylized letter "A", which has a built-in communicator. He also wears golden gauntlets on his wrists, and dark green greaves.
Aquaman co-founded the Justice League as its 6th member. During a battle against Ocean Master, Aquaman was aided by two students named Garth and Kaldur'ahm. He was so impressed he offered them to become his protégé. Garth turned down the offer but Kaldur'ahm accepted and became Aqualad.
They travelled together to the Hall of Justice in Washington, D.C.. After Speedy stormed out, Aquaman insisted that the three remaining sidekicks would eventually be allowed to accompany the League on missions when they would be ready. He then joined the League in fighting the sorceror Wotan.
Aquaman welcomed his apprentice back to Atlantis after an absence of two months, and invited him over to dinner. At the banquet, Orin revealed that Mera was expecting a child. He was not able to finish the banquet, as Superman alerted him to an emergency in Tokyo.
Superhuman Strength: As an Atlantean, Aquaman possesses above average superhuman strength. He is also far stronger than most other Atlanteans.
Enhanced Durability: Most likely due to his Atlantean blood, he is able to withstand high water pressure.
Superspeed Swimming: Aquaman's strength give him above average swimming speeds.
Underwater Breathing: Aquaman has the ability to breathe in water.
Telepathy: Aquaman possesses some form of marine telepathy.
Multilingualism: He can speak both English and Atlantean.
Aquaman is married to Mera, making her Queen of Atlantis and of the oceans of the Earth. They seem to be an extremely loving couple, who share a bond of mutual respect for the other and their duties. While Aquaman works as a hero on the surface world, Mera runs the Conservatory of Sorcery in Atlantis, and is one of their head instructors. The two are currently expecting their first child.
Aqualad is Aquaman's protégé. Although they work together, Aqualad respects Aquaman as his King and as his mentor. However, Aqualad is not afraid to speak his mind when he feels strongly, and in return Aquaman respects Aqualad's right to free expression. Aquaman considers his young protégé as a friend, holding personal conversations with him without regular formality, and also trusts him to the extent of looking after his pregnant wife.
Prince Orm is Aquaman's brother. It appears they get along well.