
Mickey has had a reoccurring case of not remembering a person's face and name as was the case of Terra-Xehanort, feeling guilty of not figuring out his true identity and agenda in time. Like Sora, Mickey has shown some concern for his foes, such as Maleficent and Pete, whom helped them reach the top of the Castle that Never Was. He originally was very biased towards light, believing that Darkness, and everything that resided in it, was evil and needed to be wiped out, but his encounters with Riku taught him that light and darkness are in balance with each other, and one cannot exist without the other. When his friends are hurt, Mickey is fully capable of getting serious and displaying actual anger, as seen during the Battle of 1000 Heartless he took a role on the battlefield after Goofy was presumed dead, although when push comes to shove, he can, albeit with reluctance, abandon his friends when the situation is truly extremely dire, as he left Aqua in the Realm of Darkness to save all the worlds from the danger of being completely taken over by darkness. Although Goofy and Donald have implied that he is not above punishing his subjects for disobedience, Mickey is shown to be rather flexible in that he is left impressed by Donald and Goofy's loyalty to Sora by disobeying his orders to leave Hollow Bastion and lets them off with a smile.

He has little care for his noble position and often prefers his closest friends to address him by his name, such as when he and Riku bonded during their adventure in Castle Oblivion, but at the same time he can command respect and loyalty from his subjects, ruling his world unchallenged and with Donald and Goofy obeying his mysterious orders upon his disappearance. Mickey values above all else friendship and integrity much more highly than others. This trait later on becomes more of a tactical last resort, as he enters a Corridor of Darkness into the Realm of Darkness at Twilight Town as it was the only way with all the points to enter the Realm of Darkness disabled and has already planned ahead to stop the chaos.

Though he is known as the King of Disney Castle, his true name is Mickey Mouse. Due to his quests-and thus, being away from his queen-he has no known children that will become the heirs to his kingdom.

Originally believing that the darkness had to be eliminated, he eventually realized that light and darkness are interdependent and cannot exist without the other due to his encounters with Riku. He travels the worlds battling the forces of darkness and is a Keyblade Master, and the chosen Keyblade wielder for the Realm of Darkness, though he follows the path of light.

Mickey Mouse, often referred to as King Mickey, The King, His Highness, Your Highness, or more commonly as Your Majesty, is the king of Disney Castle and Queen Minnie's husband. Helping others always comes before asking others for help.
