(written from a Production point of view)
Christina Carmel is an actress who played a female Xyrillian in the Star Trek: Enterprise episode "Unexpected". She received no credit for her role and was identified by the name tag of her costume which was sold off on It's A Wrap! sale and auction on eBay. 
Her only other known acting credit was in the short film 40 (2002, starring Teri Hatcher's ex-husband Jon Tenney).