It's long been purported that actress Victoria Vetri played Isis's human guise in "Assignment: Earth." Although this started out as just a fan theory, it somehow achieved the status of a well-known "fact," to the extent that you can now find it listed all over the internet, including Wikipedia, IMDB, etc. Well, I just stumbled onto a new interview with Vetri in which she insists that she never guested on STAR TREK, despite the many, many fans who keep asking her to autographs photos of Isis. Alas, she has no idea who really did play Isis, but it wasn't her. Maybe somebody who knows how to do so can finally correct the listings at Wikipedia and so forth?