Antisepticeye is a tall glitch demon with dark brown hair partially covering one eye. His black sclera and softly glowing green iris stand out against his pale, glitch-affected skin. His personality is consistently demented, showing a rapid shift from anger to seriousness to insanity. Antisepticeye foreshadows his presence through camera and voice distortions, inducing queasiness and eye/neck twitching in his victims. He is characterized as a Demonic Sadomasochist.