Miss Circle is an abnormally tall woman with long black, frazzled hair, wearing a vest, cargo pants, and military boots. Her left arm is entirely replaced from the elbow by a gigantic protractor/compass tool, which she uses to teach math and impale students. Miss Circle's personality is that of sadistic enjoyment. She is an entirely sadistic entity, who holds favorites and punishes those who fail the simplest of tasks harshly and violently. She also seems to be a bit of a goofball.