Kernel is a tan gourd-shaped experiment with a large opening at the top of his head, black eyes, a red nose, a thin mouth, short ears and a white stomach.
Kernel can produce popcorn, and pop it out of the opening on his head.
Experiment 014 was the 014th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to pop popcorn for Jumba's movie night. 014 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 some point, 014 was presumably activated, captured, and named Kernel.
Kernel was seen when Lilo was making her rounds with Scrump to check on all of the experiments. Right before she met Mertle, Lilo was seen in front of the theater, where Kernel was doing his job inside an enclosure.
Later, the first 624 experiments, including Kernel, 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.
Kernel participated in the following battle between the experiments and the Leroy clones.
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 ʻOe", which caused the Leroy army to shut down due to the original Leroy's fail-safe.
- In "Angel", after Angel turned Jumba evil again, he lied when he stated that Angel's primary function was to "pop popcorn for Jumba's movie night."
- Kernel's pod color is white.
- Kernel is described by the experiment computer screen that says "Experiment 014 Primary function: Popcorn popping."
- Kernel is one of the few experiments to not appear in the group photo at the end of Leroy & Stitch.