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Kitty is the second eldest of the Walker family behind sister Sarah. Kitty shared the conservative beliefs of her father, William, and brother, Tommy. Being Republican, Kitty always had clashes with her mother, Nora, who is more liberal. Even though they love each other, their relationship is somewhat complicated.

One of the reasons for their misunderstanding was because of younger brother Justin. Kitty supported his decision to join the army whereas Nora was completely against this, especially after Justin was deployed to Iraq. From that point until Kitty's return to Los Angeles the two had barely spoken to each other. Until she returned for a visit for her birthday, Kitty had not been home in several years. She had been living in New York City, and witnessed the fall of the Twin Towers during the 9/11 attacks.

(wikipedia.org)