Stitch, also known as Experiment 626 (pronounced "six two six"), is a fictional character from Disney's Lilo & Stitch franchise. A genetically engineered, extraterrestrial life-form resembling a blue koala, he is the more prominent of the franchise's two title protagonists, the other being his human adopter and best friend Lilo Pelekai. Stitch was created by Lilo & Stitch co-writer and co-director Chris Sanders, who also voices him in all Western-produced media that he appears in. Ben Diskin voices the character in the English versions of the Eastern-produced television spin-offs Stitch! and Stitch & Ai. Source: Wikipedia (en)