(written from a Production point of view)
Leslie Frankenheimer (2 October 1948 – 22 January 2013; age 64) was a set decorator for season 2 of Star Trek: Voyager. She worked on every episode of the season except for the first, "The 37's". Frankenheimer was also responsible for the creation of Leonardo da Vinci's workshop in the episodes "Scorpion" and "Concerning Flight", for which she did much research. 
In addition to her work on Star Trek, she worked on a variety of movies and TV shows in the set decoration department, including The Blues Brothers (with Charles Napier, Henry Gibson, and James Avery), Blade Runner (with Joanna Cassidy), The Scarecrow and Mrs. King, Max Headroom (starring Matt Frewer), and Carnivàle. She won Emmy Awards for her work on the latter two series.