Mad Mod is a recurring villain and an enemy of the Teen Titans who has no superhuman powers, but remains a formidable enemy through setting up entire worlds of dangerous false realities for the Titans to survive. He does so through technology and the worlds he sets up purposely mocks known physics, history and human principles, while also making references to 1960's British Mod culture, hence his name.
He was a fashion villain in the original DC comic books the animated cartoon was based on, as he used fashion in order to steal goods for himself. While this was different from his character in the animated cartoon, the Teen Titans Go comic issue Naked City references his DC comic book character when he tries to use fashion to hypnotize the citizens.
Mad Mod's first appearance was in the episode Mad Mod.
Mad Mod has no superpowers of his own, but he is a master of technological trickery and employs robots and holographic projectors, which he controls with a ruby-handled cane. In one circumstance, he was able to use such a cane to drain the youth from someone (Robin), making them old and himself young again. He also habitually employs optically induced hypnosis to make his victims submit to his will. Through his hypnosis and holograms, it looked as if he could control both matter and the laws of physics.