Ann is a twenty-four-year-old red-haired woman. Before being a Slenderman's proxy, she was an experiment called “Subject 666.” However, the story is not yet finished, to which the fandom has responded by inventing one (Sebastián's). She is missing her right eye, a hole that she covers with her hair. Also, she is a tall and well-developed female. She wears a black nurse's outfit and her weapon is usually a chainsaw.