The Internet Movie Database lists
Mariana Klaveno ... Young Woman
for Season 4 Episode 17.
Mariana's acting credits up to that time are:
- "Good Girls Don't..." .... Mercedes (1 episode, 2004) ... aka My Roommate Is a Big Fat Slut (Australia: cable TV title)
- Game Box 1.0 (2004) .... Michelle
It seems like she is currently dating Wentworth Miller of the TV show "Prison Break".