Mike and Martha Mailman

Mike and Martha Mailman are the twin children of Mark the Mailman and Mary, who married in Mark & Mary Marry. They were born sometime after these events and before Swapper.

In Swapper, they make their debut after William Missionima tends to the twins when he and Mark the Mailman swap bodies.

They reappear in Garyzilla, where Gary is enlarged into a dangerous beast, thus Mary hires her good-gunner lawyer to shoot Gary. Mike and Martha are seen with their mother and father. Even after the lawyer is killed, William takes the gun and shoots him, knocking him unconscious.