The character is portrayed by actress Becca Tobin, and appeared for the first time during the first episode of the fourth season, "The New Rachel", first broadcast on September 13, 2012.

At the beginning the fourth season, Kitty is initially friendly to members of the school's glee club, New Directions, because they were popular.

Once the glee club recruits Marley Rose (Melissa Benoist) and Wade "Unique" Adams (Alex Newell), however, Kitty is less welcoming to the newcomers.

She starts a relationship with Marley's love interest and brother of former glee club member Puck, Jake Puckerman (Jacob Artist).

The two of them break up during the fourth episode of the season, "The Break-Up", because he becomes angry at her for insulting his friend, Marley, which in turn angers Kitty.

During the season's eighth episode, "Thanksgiving", Kitty meets her idol, who is a former Cheerio and glee club member, Quinn Fabray (Dianna Agron), and tell her lies about Jake pressuring Marley into sex which Quinn believes due to her experience with his brother Puck (Mark Salling) back in the first season.

Fearing that she and everyone else in the glee club won't get out alive, Kitty admits to Marley that she altered her costumes and apologizes to her and Unique.

Near the season finale, Kitty helps Artie Abrams (Kevin McHale) to attend to the college of his dreams and also becomes a friend of everyone of the glee club.

She also attends the double wedding of Brittany & Santana and Kurt & Blaine, and befriends the new tween member of the Glee Club, Myron, who is interested in her.

Samantha Highfill of Entertainment Weekly gave a "B+" grade to Kitty's performance with Marley Rose, Wade "Unique" Adams, Brittany S. Pierce, and Tina Cohen-Chang of the Spice Girls' "Wannabe" in the episode Guilty Pleasures", and wrote, "The vocals were good, the vibe was fun, but I wasn't too impressed with the costumes, probably because I've done better.

She says "While Kitty's zingers can be funny, her attempt to win Jake back over by meddling with Marley makes little sense considering the limited time (and chemistry) the Cheerio had with the younger Puckerman.

For most of season 4, Kitty didn’t have that background; she was just a pile of racist, hateful remarks with a side of teen girl jealousy.