Aeolus has an arrogant demeanor and very much a narcissist. He behaves in a prideful manner to all whom he encounters, and deems the human race ignorant of their ways, and cites this as the root cause of all conflict; thus, he plays the Game of Destiny to rid the Earth of ignorance, in order to ultimately end conflict. It is therefore curious that he would cooperate with his Mega Man opponents, Atlas and Thetis in particular. Ironically, when stating how he intends to fight Albert regardless even after Grey and Ashe reveal that Albert used them, he ends up being decried as an idiot alongside the other Mega Men accompanying him.

His personality partially mirrors that of Model H's persona, Sage Harpuia from Mega Man Zero series, particularly in his perfectionist attitude.

In spite of his prideful attitude and misanthropist beliefs, he is somewhat touched by individuals sacrificing themselves for others, as evidenced by his remark to Model Z when the latter decided to take them on by itself to give Vent/Aile enough time to retrieve Ashe/Grey.