Usually the Disney child stars are quite memorable for their downward spirals and rehab stints, but there are quite a few other stars you'll encounter at the cinema (think: Keke Palmer), on the radio (Ariana Grande), or on your TV (Kenan Thompson) who got their start early on the Nickelodeon network. And then there are the ones who made a big splash on beloved shows like 'All That,' but who seem to have disappeared off the face of the earth...
But they've been out there, and they've grown far past puberty. Click through to see the incredible transformations of these child stars.