Some are fairly hard to find, and some Marta brings with her to appearances. Obviously, Lost in Space generates a sizable number of these shots, but some of the most stunning are not from the LIS years.
 
Here is a selection of the many faces of Marta Kristen...

The Bolt Who Screwed Christmas

Headshots
Modeling shots
Paparazzi shots
 

Savage Sam gallery
Beach Blanket Bingo gallery
Terminal Island gallery
Battle Beyond the Stars
Lost in Space galleries
Convention Appearance gallery