Kristin Elizabeth Cavallari is an American television personality, fashion designer and author.
Cavallari appeared on one episode of another UPN series, Veronica Mars, and went on to guest roles on series including CSI: NY, The Middle and Adventures in Hollyhood.
In 2006, she signed on as Crystal in the horror film Fingerprints.
https://en.wikipedia.org/wiki/Kristin_Cavallari