(written from a Production point of view)
Lucy Rizo is an actress who appeared as a Pathfinder science division officer in the final Star Trek: Voyager episode "Endgame". As a background actress, she received no credit for her appearance and was identified by a call sheet for this episode and the name tag of her costume which was sold off on the It's A Wrap! sale and auction on eBay. 
Rizo is a member of the precision and stunt driving team "Bondelli Driving Team", which worked on several films and television series. Star Trek: Enterprise stuntwoman Katie Rowe is also a member of this driving team.
Following her marriage, she is known as Lucy Rizo McMurtrey.