Then: Jason Zimbler played Ferguson, the bratty, money-obsessed little brother of Melissa Joan Hart's title character on the Nickelodeon teen sitcom 'Clarissa Explains It All.' While Zimlber had appeared on the  soap opera 'The Edge of Night' as a young child, Clarissa proved to be by far his most popular (and his last) television role.

Now: Zimbler graduated from Notre Dame in 1998, and has since directed and produced theatrical performances in New York City. This year he made a return to the small screen of sorts -- the 34-year-old is now working full-time as a software designer for HBO.