As a result, Butters vengefully adopted the alter ego of Professor Chaos. Intending to be a supervillain, Professor Chaos wears a green cape, and a helmet and gauntlets constructed out of cardboard and aluminum foil, a parody of Marvel Comics' Dr. Doom. Butters as Professor Chaos received much focus during the back-to-back episodes "Professor Chaos" and "Simpsons Already Did It", where he took on his younger friend Dougie as his sidekick General Disarray and ultimately failed at their several ill-prepared attempts to create "worldwide chaos". Professor Chaos has occasionally made a few appearances since, appearing to be a known supervillain to South Park's police force.