Later films and the animated series introduced other experiments (like 221, 624, 625, etc.), but Stitch remains uniquely known as .
He was created by Dr. Jumba Jookiba as part of a series of illegal genetic experiments, and “Experiment 626” is his official designation. The number appears in the original 2002 film, where Stitch is referred to by this number by Jumba and by the Galactic Federation.
In Disney’s Lilo & Stitch franchise, Stitch’s experiment number is .
