Sure, you know the cat-eating alien hails from the planet Melmac, but there’s plenty you (probably) don’t know about Gordon Shumway and his classic television show. 1. The voice of ALF, Paul Fusco, also operated the ALF puppet—most of the time. When ALF needed to be shown in his full glory, actor Mihaly Meszaros—who stands two feet nine inches tall—stepped into the costume. 2. The show’s finale was crafted as cliffhanger to entice the network to bring the show back for a new season.