She has dark hair and is slightly overweight. She is an expert on handwriting, able to recognise if two texts were written by the same hand, or if one was written by another, or even if one was written by another in an attempt to copy someone's handwriting. In Legion: Skin Deep, she also learns a certain amount of cryptography after Stephen reads a book on the subject.
Audrey is not one of Stephen's closest aspects, usually staying home while Stephen, Ivy, Tobias and J.C. go out on cases. She seems to prefer this, seeming to assume she'll get shot at. Unusually, Audrey has the delusion that she does not exist. Of course, this is totally true, but only by coincidence.