A 1970s loving teacher who has lots of nostalgia for the 1970s, resembling a disco nut. His name is Señor Couldbea. He used to be a professional wrestler, but lost his World Championship title in 1972 and never won it again, an incident that continues to haunt him for years. When Rikochet accidentally opens a time portal to the day of that fight in "Woulda, Coulda, Hasbeena", Señor Hasbeena tried to prevent the incident that resulted on his defeat, only to become the one who caused it in the very first place. His name is derived from the term "has-been". In Cartoon Network Latin America, his name is spelled "Señor Yashido", which is a pun on "Ya ha sido" (has already been). In Brazil, his name is "Ed Cadente", which is a play on the word "decadente" (decadent). His signature move is the "Funkay DiscoBall". Dislikes Kid up and coming.