Aries

Once upon a time, Aries didn't exist. And the one day, he did. He's not sure how he was even born. His earliest memories consist of wandering through space. He found Earth at some point, and decided to assimilate with the similar-looking fellow sentient creatures.

In a word Aries is air-headed. With no concept of time he doesn't really understand urgency, and with no concept of pain he doesn't understand danger. Despite his lack of empathy however, he makes it a point to be nice to others.