Alf is the nickname of Gordon Shumway, a friendly and furry extraterrestrial coming from Melmac (ALF means Alien Life Form) who lives in the garage of the Tanner family. His main activities is to do stupid stuffs like eating cats 
The actor playing ALF was Michu Meszaros, he is 2 ft 9 inches tall :
The TV show was origanlly aired on NBC in 1986, 25 years ago.
The opening theme :
