Gonk
Pretty much the only way in animation to make someone ugly or unusual looking is to do it deliberately and without subtlety. This character is not just unattractive, they're absurdly ugly. The result can be extremely jarring if it deviates too much from the rest of the show's look, though that's usually the point as these characters are usually intended as comic relief.
Occasionally, Artistic Age means that Gonk gets applied to make older characters seem downright decrepit in order to seem older than the generically young cast.
An example of Non-Standard Character Design. Compare Oddball Doppelgänger.
Please note: While it is possible f...read more