Edison

Edison is a friend of both Mario and Luigi and their roomate in Mario Brothers Plumbing in The Super Mario Bros. Super Show!. Despite living in Mario Brothers Plumbing, Edison is rarely there, and when he is, its usually only briefly. Edison can most commonly be found in the walls of Mario Brothers Plumbing or a manhole in the floor, which apparently leads outside into Flatbush. Edison has an exceptionally odd appearance, his face being mostly covered by his goggles and mop-like hair, Edison is also always shown wearing a construction helmet with a light attached to it. In contrast to Mario and Luigi, who are plumbers, Edison is an electrician.

Appearances
The first appearance of Edison in The Super Mario Bros. Super Show! was in the show's second episode, "King Mario of Cramalot / Day of the Orphan"; here, Edison acts as Luigi opponent in a game of chess, which Edison is extremely slow in playing. Eventually becoming annoyed with Edison indescicive chess playing, Luigi makes him move a peice. This move causes Edison to win the chess match and also causes him to gloat about his victory to a surprised Luigi.

Edison briefly appeared in "Brooklyn Bound / Cher's Poochie", helping Mario assemble his Pizza Transformer. Travelling through the wall of Mario Brothers Plumbing, Edison plugged some cables attached to the Pizza Transformer for Mario.