Star Trek celebrity guest Virginia Madsen playing Kellin in an appearance on a Voyager episode called Unforgettable. She's a famous movie actor.
The top picture is the actor in normal circumstances, and the bottom picture(s) is of the actor in their specific role(s).
6 Pictures from Unforgettable
She starred in The Haunting, The Prophecy, Candyman, Highlander II: The Quickening, The Hot Spot, Dune, Electric Dreams, and of course Zombie High.
Unforgettable -Star Trek: Voyager - 190 (episode # 4.22) -Playing Kellin -Her ship appears and she asks for asylum from her people. She was on Voyager earlier, but memories of her people cannot be kept for more than a few hours. She fell in love with Chakotay, but a tracer shoots her with the neurolytic emitter, so she forgets everything and leaves.