The Spell of Cartoon is an enchantment that effects all animated characters. Unless called for in a specific storyline, the spell keeps the characters from aging as well as from dying.
An example of this spell's evidence can be found in any adventure in Disney's Sleeping Beauty. While assisting the three good fairies, all other characters remain as they are while only Prince Phillip and Princess Aurora age over the course of 16 years.
Other examples are found in the movisode adventures in the Star Wars saga, The Swan Princess, and the Lion King.