Gillian is a fictional character portrayed by Sierra McCormick in the TV series Hannah Montana.
In the first episode they appeared in, titled Welcome to the Bungle (season 3), they were 11 years old.
They appear in 1 episodes out of a total of 100 aired
Episodes1
Welcome to the Bungle
episode S3.E8 march 2009Hannah must learn to be the role model that everyone expects her to be after she causes a havoc by stating on TV that she doesn't like all vegetables. Meanwhile, Oliver and Jackson become models for a dating site, but it has a catch.