Suzumiya Haruhi

Occupation: 10th Grade Student, Member of the SOS Brigade

Suzumiya Haruhi is the titular heroine of the series. She is the founding member of the SOS Brigade with the purpose of finding aliens, time travelers and espers.

Although she doesn't know it, all the members of the SOS Brigade she recruits, besides Kyon, happen to fit into these groups (Nagato Yuki, Asahina Mikuru, and Koizumi Itsuki respectively). She is incredibly eccentric and usually anti-social, with no interest in "ordinary" humans. She also, unknown to her, has the god-like abilities to change, destroy, and reshape reality. It is said that if she were to become bored enough with the world, she could create closed space, meaning a new world which could prevent destruction in the "real world". After revealing themselves to Kyon, the trio of Nagato Yuki, Asahina Mikuru and Koizumi Itsuki all state they were sent by their respective higher-ups to watch over her, and Koizumi specifically mentions they must keep her entertained so she doesn't become too bored.