(written from a Production point of view)
Brandy Pickett is an actress who appeared in several episodes of Star Trek: The Next Generation as a science division officer. She received no credit for her appearances and was identified by the name tag of her costume which was sold off on the It's A Wrap! sale and auction on eBay and the call sheets of the episodes. 
Pickett is listed on the call sheet for the fourth season episode "The Mind's Eye" as a crewmember in scene 22 in the shuttlebay but did not appear in this episode.