When he was younger, he had short brown hair and hazel eyes with a muscley build. Eventually, he would grow a beard around the age of 22. He kept his enchanted sword, Excalibur, on him at all times.
As a boy, Arthur was very curious but naive. He had a long dream of becoming a reknown champion of Justice, and his dream was fulfilled when the Mage Merlin trained him as a warrior. After gaining Excalibur, he decided to use it in his quest to retake his kingdom from the Dictator Constantine II. He always trusted Merlin, seeing him as both a teacher and a grandfatherly figure. Despite being a man who sought peace and justice wherever he went, Arthur held a secret lust for Morgause, unknown to him to be his half-sister. Discovering this after a love-affair with her, he is mortified and, out of fear for his reputation, banishes her from his kingdom. He regards Mordred as a mistake and scornfully despises him for his existance.