Slim Smith is the owner of Slim's Service Station and the next door neighbor of Marvin White. Once his gas station was automated by the G.E.E.C. computer, he didn't bother going to work anymore, and just sat around at home in his front yard. When Robin saw Slim Smith, he told Wendy "Holy nicknames! He better find a new one!" This was because he was fat, and far from "slim." Wendy told Robin she thought Slim should go on a diet.