Christy Vanderbilt is a fictional character portrayed by Brooke D'Orsay in the TV series The Big Bang Theory.
In the first episode they appeared in, titled The Dumpling Paradox (season 1), they were 25 years old.
They appear in 1 episodes out of a total of 279 aired
Episodes1
The Dumpling Paradox
episode S1.E7 november 2007When Howard hooks up with Penny's old friend, his absence in the gang causes problems for the rest of the guys.