User blog comment:Ḡwẵine Ḹٍٍkƨ Ĺiĸe Ͼềлȑềd/Series 5 - the 5 Best and Worst Characters/@comment-87.52.66.152-20130109190846/@comment-5659316-20130109231627

No, it is Freya's arm, actually. The writers/creators of the show have confirmed this. They just chose to use a male diver for that scene, cuz I guess it was easier or something. It's also possible that the arm used in The Coming of Arthur was ALSO male but the close up was different, and it was thinner and paler, which was why nobody noticed.