Mungojerrie is part of the notorious duo, Mungojerrie and Rumpleteazer. Most people believe this duo are either romantically or genetically involved, and that they've been stealing together for a while. Some people also believe that he and Rumpleteazer used to work for Macavity (as his name IS mentioned in "Macavity, the Mystery Cat.") His trademark Cockney accent and cute facial expressions make Rumpleteazer one very lucky queen.