Lisa's Friend 3 is a girl who is one of Lisa's new friends.
She is first seen in Lisa Simpson's bedroom with two other girls, discussing about the Survival Games movie with one another. She is surprised when Lisa whispers a swear word in her ear because her grandfather said it at Thanksgiving once, and she also revealed that she has a father, who doesn't appear but is mentioned.
The same girl appears in the Aztec Theater watching the Survival Games movie with Lisa and her two friends. However, since all three girls are present, they all sit on different aisles. Her first friend is seen sitting next to her but the second friend is next to Lisa Simpson on the second row.
She has short auburn hair with a couple of layers and a side fringe. She wears a light purple shirt with a light pink bear skull on it, blue-gray jeans and purple shoes.
It is possible that the girl is a middle school student based on her age, as she and her friends don't attend Springfield Elementary School, but is unknown what school the girls attend.