'Welcome Back, Kotter' Cast: Where Are They Now?

Lawrence Hilton-Jacobs played Freddie 'Boom Boom' Washington on "Kotter." After the show he appeared in a number of films including "The Jacksons: An American Dream" as well as television shows and commercials. But like many of his castmates, he failed to find fame. A fun fact about the actor though: He sang background vocals on Rick James's "Superfreak." (Frederick M. Brown/Getty Images)