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* Physical appearance.
It's invisible, but when struck with electricity it has green skin.
The Invisible Madman was very sneaky and violent. He was also very intent on kidnapping Simple Plan. He was also crazy and wreckless because he endangered the lives of others such a as the gang and simple plan.
Powers and abilities
What's New, Scooby-Doo?
- The Invisible Madman was the first monster where every suspect was the monster in order to throw Mystery Inc. off the trail.