Cat, A.K.A. Experiment 298, is an illegal genetic experiment created by Jumba Jookiba. She is designed to scan targets for weaknesses. Her one true place is working at the Hospital.
Experiment 298 was the 298th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to scan targets for weaknesses (does so by wrapping her tail around her targets and detects both physical and psychological weaknesses within her target).
296 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, 298 was activated, captured, tamed, and named Cat.
As her name suggests, Cat looks like a cat. Her tail curls into itself at the end.
She is able to understand and speak over 2500 different languages.