Then: Tony O'Dell played Alan Pinkard, the argyle sweater-wearing, Ronald Reagan-loving preppy -- yup, that character was pretty much an '80s-sitcom staple -- on 'Head of the Class.'
Then: On 'Head of the Class,' Kimberly Russell played Sarah Nevins, who may not have been the smartest among the geniuses, but was probably the nicest and most socially well-adjusted.
Then: Jonathan Ke Quan's first acting gigs were in two of the most memorable movies of the '80s. He starred as Short Round in 'Indiana Jones and The Temple of Doom,' and as Data in 'The Goonies.' He was also brought on during the fifth season of 'Head of the Class' to portray Jasper Kong, but his previous magic didn't rub off, and the sitcom was cancelled.
Then: Tannis Vallely played Janice Lazarotto, a 12-year-old prodigy who was able to outshine her older genius classmates in the sitcom 'Head of the Class.' Previous to that, Vallely appeared on the PBS show '3-2-1 Contact.'