The Mask: The Animated Series
Skillit (voiced by Jason Marsden): A mischievous imp who hails from the Shadowland, and can use his own living shadow to suck the shadows out of other people, turning them old fast (only the Mask is immune to this) and allowing him to remain forever young (though he is powerless without his shadow). He is over 4000 years old but, in his own words, doesn't look a day over 12 (because of this, when he is captured he is often forced to do homework). He has known everyone who has ever possessed the mask, such as Atilla the Hun, Gengis Khan, and Blackbeard the Pirate.