Experiment 062 was the 62nd genetic experiment created by Jumba with Hämsterviel's funding. He was designed to be Jumba's personal chef. While 062 did feed Jumba delicious meals, the former secretly made them to never make Jumba feel full and cause him to bloat up. Presumably, when the food fattened Jumba up to a massive enough size, 062 tried to eat him, but Jumba was able to deactivate him in time.
062 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.
All of the experiment pods were released and scattered across the island of Kauai.
At an unknown point after this, Experiment 062's pod was found by Jumba and kept hidden away.
After Nani began restricting Lilo and Stitch's diet to healthy food, she told Pleakley to feed them the nutritious meals she left in the freezer before leaving for work. However, Lilo, Stitch and Pleakley defied Nani and found 062's pod while searching Jumba's room for a stash of junk food.
When Lilo and Stitch discovered what 062 was created to do, they activated the latter and asked him to make them junk food. 062, named Frenchfry by Lilo, complied but secretly designed the food to fatten Lilo, Stitch and Pleakley up while being irresistibly delicious.
Gantu tried to capture Frenchfry at one point using an inventive "trog call," then took a beating from a bloated Lilo and Stitch. However, when Gantu mentioned it was his birthday (although he denied this when Experiment 625 brought it up earlier), Frenchfry made Gantu a cake that fattened him up and caused him to flee in shock.
Frenchfry continued to make Lilo, Stitch and Pleakley more bloating food, until Lilo and Stitch at last became so fat from it that Frenchfry restrained them and attempted to eat them.
However, before Frenchfry could eat Lilo and Stitch, Nani arrived and battled and defeated Frenchfry.
The next morning, Lilo and Stitch were back to their trim selves, while Frenchfry developed a liking for Nani's oatmeal. When Lilo and Stitch discovered this, they agreed to feed him oatmeal, and in return he vowed to make healthy meals and not try to eat people.
Frenchfry was shortly after found a one true place running a healthy French fry hut, where he made delicious low fat food.
In "Remmy", Frenchfry was one of the experiments in Lilo's dream.
Frenchfry was one of the experiments that was gliding on the screen, but he is 558 instead of 062.
Later, the first 624 experiments, including Frenchfry, were rounded up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.
Frenchfry participated in the following battle between the experiments and the Leroy clones by transfixing and hitting Leroys with his spatula.
However, the Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song "Aloha `Oe," which caused the Leroy army to shut down due to the original Leroy's fail-safe.
Frenchfry makes an appearance in the Stitch! anime along with Squeak, Pix, Tickle-Tummy, and Houdini after Hämsterviel kicks them out for being useless. In the anime his food causes people to inflate like balloons rather than gain weight.
- Frenchfry was designed to feed and fatten his victims so he can eat them. This is based on the witch from Hansel and Gretel.
- Frenchfry speaks with a thick French accent.
- Frenchfry is Nani's first and only experiment she caught.
- Frenchfry's pod color is white.
- Frenchfry is described by the experiment computer screen as, "Experiment 062 Primary function: Creates tasteful and irresistible meals."