Kaitlin is a student at Springfield Elementary School.
Lisa asked one of Kaitlin's friends if she could sit with them, but the request was denied and Kaitlin and her friends laughed at Lisa.
After Lisa began reading the book Chicks with Cliques, Kaitlin started to hang out with Lisa. She, along with Brittany, came to the "Decorate Your Own Cellphone" party that was being hosted by Homer and Lisa in the backyard of their house.
The party was a success and Kaitlin put Lisa as her friend on Facebook. Then she took pictures of Lisa with the other girls at the party.
Kaitlin wears a pink shirt, long blue pants, and blue shoes. She also has an orange and pink colored bracelet on her right wrist.
- Episode – "Father Knows Worst" (Seen in the cafeteria at school and at the party Homer and Lisa was hosting)
- Book – Simpsons World: The Ultimate Episode Guide, Seasons 1-20 (Who Does What Voice)