List Criteria: Upvote the child TV and movie stars who grew up the ugliest.
Some of the cutest child actors grow up to be some ugly adults. Some of these ugly former child stars were unfortunate enough to go through puberty in front of a camera, and many never recovered even a modicum of their cuteness. While their stumbling trips into adulthood didn't stop some of them from achieving big-time success and/or smoking hot spouses (Ron Howard, I'm talking to you), the fact remains that while these poor folks were cute actors as kids, they still turned into some of the ugliest actors as adults.
As if it's not bad enough to talk about how some of these actors and actresses used to be among the greatest child actors ever, some of them are even child stars who grew up to look like Muppets, and now they "grace" the list of child actors who grew up ugly. And they're rich. Most of them made more money before they lost their virginity than you'll make your whole life. Remember that. It buys happiness and the freedom to not care what you think, person on the Internet.
If this list of formerly cute young actors bums you out, swing by the list of before and after pictures of your childhood crushes to get back in the sexy groove. There's a couple of zonks on the list, but it's a generally pleasing collection of hot former child stars.