JohnsEdge is the annoying son of Stomedy as revealed in the season 45 finale plot twist. He is usually seen singing his title song "Mad World" after a tragic meme war has taken place.
His main ability is to increase sadness and misery throughout locations of grief in the meme world by singing his theme:
At first he appears to be unhappy among some of the Malteser deaths whilst singing his theme. In Season 46 he becomes more pesky and irritating toward his father, Stomedy.