19. DEMI LOVATO

TV Shows: As The Bell Rings, Sonny With a Chance
Films: Camp Rock (2008), Princess Protection Program (2009), Camp Rock 2: The Final Jam (2010)

Disney first introduced Demi through a series of short segments in As The Bell Rings. We were finally treated to more than two minutes of her screentime when she played a Jonas’ love interest in Camp Rock and showed off her singing chops, which she may have honed on Barney (but that’s besides the point). Her own TV series and a stint in a rehab later, Demi has become one of the most talked about Disney stars today.