Felix (Lilo & Stitch)

Experiment 010 later known as Felix as well as Oscar is one of Doctor Jumba Jookiba's many genetic evil experiments. He is a cousin of Stitch and recurring character in the franchise. Felix first appeared in the television series Lilo and Stitch.

Lilo and Stitch: The series
Experiment 010 was one of Dr. Jookiba's first creations. The creature was "programmed" to be a perfect cleaner whose main function was to help maintaining the laboratory clean and free of germs. However, 010 had a terrible error in its "programming" which caused it to mistakenly identify lifeforms as germs and try to exterminate them. Like all of Jumba's experiments, 010 ended up on Earth where it was given the nickname Felix (after Felix Ungar). Jumba managed to fix the error, avoiding a major disaster, but also turning Felix into a troublesome dirt-maker, after which it was renamed Oscar (after Oscar Madison and possibly Oscar the Grouch). It was later given away to Captain Gantu.

Stitch!
Felix is a recurring character in the anime series. He is one of Stitch's closet friends and regained his cleaning habit but mellowed down compared to his original state. He frequently appears joining Stitch on his quest to become officially good and the most powerful being in the universe.

Disney Parks
In Tokyo Disneyland, Felix is a popular character being that his franchise is extremely popular in Japan. Other than Tokyo, Felix is not seen in any other of the Parks around the world.

Dreams Within
In Tokyo Disneyland, Felix joins other Disney characters as they celebrate the magic inside everyone's hearts.