This merchant first appears in the first season of Aphmau's Minecraft Diaries. He is only seen in two episodes, but nothing is know about the man besides the fact he sold Ice-Cream Sandwich Creepers that have been declared dangerous. First appeared in Episode 24, Season 1, "Crazy Day." He was duly missed upon Aphmau's return, and it was noted that his stand was turned into the infirmary that Donna ran.
He is crazy and creepy.