"Hi, my name is Leslie McGroarty, and this is my cute spider friend, Itsy Bitsy!"
— Leslie at the beginning of the series' opening.
Leslie McGroarty is the titular protagonist in the Itsy Bitsy Spider franchise. She is a toughest and short-tempered young city girl who is befriended by a spider named Itsy, and she is full of energy. One day, during the piano lesson, she sees a country spider named Itsy for the first time.
Leslie loves things like hanging out with boys, bicycling, skateboarding, farting, studying karate, bugs, eating candies and something else boyish. She is a tomboy. Leslie has her electric guitar to practice her rock music. However, despite her tomboyish attitude, she has her girly side, when she's doing ballet. Leslie had the magical ability to shrink herself to bug size, when she taps her black Mary Jane shoes five times.
Leslie is a tough and slender tomboy with short black hair. She wears circular shaped glasses, a light blue dress with puffed sleeves and a red belt, white socks and black Mary Jane shoes.
Leslie does her fist pump, due to her tomboyish attitude.
Leslie feeling so romantic.
Leslie McGroarty ferociously screams in rage with her demonic voice, due to her tomboyish attitude.