Wally and Lumpy were Geo Guy's brothers who smoke cigarettes. They are a bit mean to Geo Guy and Geo Girl. However, they have a bit of a caring side sometimes sticking up to Geo Guy and Geo Girl if they were in danger. They are voiced by Nancy Cartwright and Tress MacNeille respectively
Trivia[]
In foreign versions of Geo's World episodes, their cigarettes have been replaced for lollipops. In later episodes of the series and eventually Geo's Universe, they now lick lollipops. This change was first made for the Geo's World films to appeal to younger audiences.