Orbitty

Orbitty is a small fluffy white alien with expandable spring-like legs who is usually white but changes color depending on his emotion from The Jetsons. He was originally voiced by Judith Barsi, but was replaced by Diane Michelle after her death.

Biography
Orbitty is an alien of an endangered species, which has spring legs and suction cup feet. He and his kind have the special ability to turn various colors, depending on their mood, such as red when angered or modest, blue when saddened, yellow when frightened, etc. Orbitty was picked up as an egg by Elroy Jetson. He hatched in the Jetson's house and then became a member of The Jetson family for the second and third season. He doesn't appear in any of the movies, however. Their special ability can also be useful for tracking something, though the range of colors they change is only limited to red and blue when doing so, as red indicates warm/hot and blue indicates cold. He also possesses some degree of technical knowledge, as he is able to take things apart and then put them back together again.

Oliver and the Magic Road
Though he only had a few lines in the film, Orbitty encountering Tanis has something to do with the plot, because They walk by the Magic Road that leads to the Island with "Talking Trains".