TV shows: True Jackson, VP (2000-12), Winx Club (2011-12)
Palmer was well on her way to stardom when she started at Nick. She'd had the lead role in Akeelah and the Bee and her debut album, So Uncool, came out in 2007. She played the title role in True Jackson, VP, a teenager who is hired to head up the kids' division at a fashion company called Mad Style. Now that the show has finished its run (the series finale aired in August), 20-year-old Palmer is free to pursue a career in grown-up movie roles.