At least half of the Friends showed up on Fox before they hit the big time. As noted, Jennifer Aniston was on The Edge, while Matt LeBlanc appears later in our list (don't change that channel!). But a very baby-faced Matthew Perry gets the honor for starring in the weirdest before-they-were famous effort, here playing the younger version of a man named Charles (Kiel Martin) who dies in a 2011 hovercraft accident. (Speaking of which, where are those goddamned hovercrafts we were promised!) Anyway, St. Peter decides dead Charles isn't right for heaven or hell, so he's sent back to Earth to live with his teenage self. Crazy! So crazy, in fact, that viewers rejected the show, and after just a couple months, Fox pulled it from the air, dropped the whole old-young Charles thing, and with little explanation turned the show into a teen buddy comedy called Boys Will Be Boys. Shockingly, it didn't last either.