Stitch is the name of the genetic experiment 626, a fictional alien, and the main protagonist from the Lilo & Stitch films and television program. He's the hero of the first film, the series and Leroy & Stitch. Although Lilo is the heroine of Lilo & Stitch 2:Stitch has a glitch, Stitch keeps being the main protagonist. Originally created to cause chaos across the galaxy, he is marked by his short temper and mischievous behavior, traits that endear him to his friend Lilo, who adopted him as her puppy dog.